{
  "name": "unimarc",
  "leader": [
    { "position": 5, "target": "status", "rules": [
      { "raw": "n", "value": "new" },
      { "raw": "c", "value": "corrected" },
      { "raw": "d", "value": "deleted" }
    ]},
    { "position": 6, "target": "record_type", "rules": [
      { "raw": "a", "value": "languageMaterial" },
      { "raw": "b", "value": "manuscript" },
      { "raw": "c", "value": "notatedMusic" },
      { "raw": "d", "value": "notatedMusic" },
      { "raw": "e", "value": "cartographicMaterial" },
      { "raw": "f", "value": "cartographicMaterial" },
      { "raw": "g", "value": "projectedMedium" },
      { "raw": "i", "value": "sound" },
      { "raw": "j", "value": "sound" },
      { "raw": "k", "value": "visual" },
      { "raw": "l", "value": "computerFile" },
      { "raw": "m", "value": "mixedMaterials" },
      { "raw": "r", "value": "visual" }
    ]},
    { "position": 7, "target": "bibliographic_level", "rules": [
      { "raw": "m", "value": "monograph" },
      { "raw": "s", "value": "serial" },
      { "raw": "a", "value": "monographicComponent" },
      { "raw": "c", "value": "collection" },
      { "raw": "i", "value": "integratingResource" }
    ]},
    { "position": 8, "target": "hierarchical_level", "default_raw": "0", "rules": [
      { "raw": "0", "value": "none" },
      { "raw": "1", "value": "higher" },
      { "raw": "2", "value": "lower" }
    ]},
    { "position": 17, "target": "encoding_level", "default_raw": " ", "rules": [
      { "raw": " ", "value": "full" },
      { "raw": "1", "value": "short" },
      { "raw": "2", "value": "incomplete" }
    ]},
    { "position": 18, "target": "descriptive_cataloging_form", "default_raw": " ", "rules": [
      { "raw": "i", "value": "isbd" },
      { "raw": " ", "value": "non_isbd" }
    ]}
  ],
  "directory_map": "450  ",
  "encoding_indicator": {
    "tag": "100",
    "subfield": "a",
    "slice": { "offset": 26, "length": 2 },
    "rules": [
      { "encoding": "utf8", "raw": "50" },
      { "encoding": "iso5426", "raw": "01" },
      { "encoding": "iso8859_2", "raw": "02" },
      { "encoding": "iso8859_3", "raw": "03" },
      { "encoding": "iso8859_5", "raw": "05" }
    ],
    "default_raw": "50"
  },
  "rules": {
    "languages": {
      "entries": [
        { "raw": "fre", "value": "french" },
        { "raw": "fra", "value": "french" },
        { "raw": "eng", "value": "english" },
        { "raw": "ger", "value": "german" },
        { "raw": "deu", "value": "german" },
        { "raw": "spa", "value": "spanish" },
        { "raw": "ita", "value": "italian" },
        { "raw": "por", "value": "portuguese" },
        { "raw": "jpn", "value": "japanese" },
        { "raw": "chi", "value": "chinese" },
        { "raw": "zho", "value": "chinese" },
        { "raw": "rus", "value": "russian" },
        { "raw": "ara", "value": "arabic" },
        { "raw": "dut", "value": "dutch" },
        { "raw": "nld", "value": "dutch" },
        { "raw": "swe", "value": "swedish" },
        { "raw": "nor", "value": "norwegian" },
        { "raw": "dan", "value": "danish" },
        { "raw": "fin", "value": "finnish" },
        { "raw": "pol", "value": "polish" },
        { "raw": "cze", "value": "czech" },
        { "raw": "ces", "value": "czech" },
        { "raw": "hun", "value": "hungarian" },
        { "raw": "rum", "value": "romanian" },
        { "raw": "ron", "value": "romanian" },
        { "raw": "tur", "value": "turkish" },
        { "raw": "kor", "value": "korean" },
        { "raw": "lat", "value": "latin" },
        { "raw": "gre", "value": "greek" },
        { "raw": "ell", "value": "greek" },
        { "raw": "hrv", "value": "croatian" },
        { "raw": "scr", "value": "croatian" },
        { "raw": "hin", "value": "hindi" },
        { "raw": "heb", "value": "hebrew" },
        { "raw": "per", "value": "persian" },
        { "raw": "fas", "value": "persian" },
        { "raw": "cat", "value": "catalan" },
        { "raw": "tha", "value": "thai" },
        { "raw": "vie", "value": "vietnamese" },
        { "raw": "ind", "value": "indonesian" },
        { "raw": "may", "value": "malay" },
        { "raw": "msa", "value": "malay" }
      ]
    },
    "countries": {
      "entries": [
        { "raw": "fr", "value": "france" },
        { "raw": "fr", "value": "france" },
        { "raw": "us", "value": "unitedStates" },
        { "raw": "xxu", "value": "unitedStates" },
        { "raw": "uk", "value": "unitedKingdom" },
        { "raw": "xxk", "value": "unitedKingdom" },
        { "raw": "de", "value": "germany" },
        { "raw": "gw", "value": "germany" },
        { "raw": "es", "value": "spain" },
        { "raw": "sp", "value": "spain" },
        { "raw": "it", "value": "italy" },
        { "raw": "it", "value": "italy" },
        { "raw": "jp", "value": "japan" },
        { "raw": "ja", "value": "japan" },
        { "raw": "cn", "value": "china" },
        { "raw": "cc", "value": "china" },
        { "raw": "ru", "value": "russia" },
        { "raw": "ru", "value": "russia" },
        { "raw": "br", "value": "brazil" },
        { "raw": "bl", "value": "brazil" },
        { "raw": "ca", "value": "canada" },
        { "raw": "xxc", "value": "canada" },
        { "raw": "au", "value": "australia" },
        { "raw": "at", "value": "australia" },
        { "raw": "nl", "value": "netherlands" },
        { "raw": "ne", "value": "netherlands" },
        { "raw": "be", "value": "belgium" },
        { "raw": "be", "value": "belgium" },
        { "raw": "ch", "value": "switzerland" },
        { "raw": "sz", "value": "switzerland" },
        { "raw": "at", "value": "austria" },
        { "raw": "au", "value": "austria" },
        { "raw": "pt", "value": "portugal" },
        { "raw": "po", "value": "portugal" },
        { "raw": "pl", "value": "poland" },
        { "raw": "pl", "value": "poland" },
        { "raw": "in", "value": "india" },
        { "raw": "ii", "value": "india" },
        { "raw": "mx", "value": "mexico" },
        { "raw": "mx", "value": "mexico" },
        { "raw": "ar", "value": "argentina" },
        { "raw": "ag", "value": "argentina" },
        { "raw": "kr", "value": "southKorea" },
        { "raw": "ko", "value": "southKorea" },
        { "raw": "se", "value": "sweden" },
        { "raw": "sw", "value": "sweden" },
        { "raw": "no", "value": "norway" },
        { "raw": "no", "value": "norway" },
        { "raw": "dk", "value": "denmark" },
        { "raw": "dk", "value": "denmark" },
        { "raw": "fi", "value": "finland" },
        { "raw": "fi", "value": "finland" }
      ]
    },
    "audience": {
      "default": "unknown",
      "entries": [
        { "raw": "a", "value": "juvenile" },
        { "raw": "b", "value": "preschool" },
        { "raw": "c", "value": "primary" },
        { "raw": "d", "value": "children" },
        { "raw": "e", "value": "youngAdult" },
        { "raw": "k", "value": "adultSerious" },
        { "raw": "m", "value": "adult" },
        { "raw": "x", "value": "unknown" },
        { "raw": "u", "value": "unknown" }
      ]
    }
  },
  "blocks": [
    {
      "id": "identification",
      "label": "0XX - Identification",
      "fields": [
        { "tag": "001", "type": "control", "target": "identification.record_id", "mandatory": true },
        { "tag": "003", "type": "control", "target": "identification.agency_id" },
        { "tag": "005", "type": "control", "target": "identification.record_version_date" },
        {
          "tag": "010",
          "subfields": [
            { "code": "a", "target": "identification.isbn.value" },
            { "code": "b", "target": "identification.isbn.qualifying" }
          ]
        },
        {
          "tag": "011",
          "subfields": [
            { "code": "a", "target": "identification.issn.value" },
            { "code": "b", "target": "identification.issn.qualifying" }
          ]
        },
        {
          "tag": "013",
          "subfields": [
            { "code": "a", "target": "identification.publisher_numbers.value" },
            { "code": "b", "target": "identification.publisher_numbers.source" }
          ]
        },
        {
          "tag": "015",
          "subfields": [
            { "code": "a", "target": "identification.national_bibliography_numbers" }
          ]
        },
        {
          "tag": "016",
          "subfields": [
            { "code": "a", "target": "identification.national_library_record_numbers" }
          ]
        },
        {
          "tag": "017",
          "subfields": [
            { "code": "a", "target": "identification.legal_deposit_numbers" }
          ]
        },
        {
          "tag": "020",
          "subfields": [
            { "code": "a", "target": "identification.lccn" }
          ]
        },
        {
          "tag": "035",
          "subfields": [
            { "code": "a", "target": "identification.system_control_numbers" }
          ]
        },
        {
          "tag": "040",
          "subfields": [
            { "code": "a", "target": "identification.codens.value" }
          ]
        },
        {
          "tag": "071",
          "subfields": [
            { "code": "a", "target": "identification.publisher_numbers.value" },
            { "code": "b", "target": "identification.publisher_numbers.source" }
          ]
        },
        {
          "tag": "073",
          "subfields": [
            { "code": "a", "target": "identification.system_control_numbers" }
          ]
        }
      ]
    },
    {
      "id": "coded",
      "label": "1XX - Coded information",
      "fields": [
        {
          "tag": "100",
          "mandatory": true,
          "length": 36,
          "subfields": [
            { "code": "a", "slice": { "offset": 0, "length": 8 }, "target": "coded.date_entered_on_file" },
            { "code": "a", "slice": { "offset": 8, "length": 1 }, "target": "coded.type_of_date" },
            { "code": "a", "slice": { "offset": 9, "length": 4 }, "target": "coded.date1" },
            { "code": "a", "slice": { "offset": 13, "length": 4 }, "target": "coded.date2" },
            { "code": "a", "slice": { "offset": 17, "length": 3 }, "target": "coded.target_audience", "rules": "audience" },
            { "code": "a", "slice": { "offset": 20, "length": 1 }, "target": "coded.government_publication" },
            { "code": "a", "slice": { "offset": 21, "length": 1 }, "target": "coded.modified_record" },
            { "code": "a", "slice": { "offset": 22, "length": 3 }, "target": "coded.cataloging_language" },
            { "code": "a", "slice": { "offset": 25, "length": 1 }, "target": "coded.transliteration_code" },
            { "code": "a", "slice": { "offset": 26, "length": 4 }, "target": "coded.character_set" },
            { "code": "a", "slice": { "offset": 30, "length": 4 }, "target": "coded.additional_character_set" },
            { "code": "a", "slice": { "offset": 34, "length": 2 }, "target": "coded.script_of_title" }
          ]
        },
        {
          "tag": "101",
          "mandatory": true,
          "subfields": [
            { "code": "a", "target": "coded.languages", "rules": "languages" },
            { "code": "c", "target": "coded.original_languages", "rules": "languages" }
          ]
        },
        {
          "tag": "102",
          "subfields": [
            { "code": "a", "target": "coded.country", "rules": "countries" }
          ]
        }
      ]
    },
    {
      "id": "description",
      "label": "2XX - Descriptive information",
      "fields": [
        {
          "tag": "200",
          "mandatory": true,
          "subfields": [
            { "code": "a", "target": "description.title.main", "trim": "/" },
            { "code": "e", "target": "description.title.subtitle", "trim": "/" },
            { "code": "f", "target": "description.title.responsibility" },
            { "code": "d", "target": "description.title.parallel", "trim": "/" },
            { "code": "h", "target": "description.title.number_of_part" },
            { "code": "i", "target": "description.title.name_of_part" }
          ]
        },
        {
          "tag": "205",
          "subfields": [
            { "code": "a", "target": "description.edition" }
          ]
        },
        {
          "tag": "210",
          "subfields": [
            { "code": "a", "target": "description.publication.place", "trim": "[]" },
            { "code": "c", "target": "description.publication.publisher", "trim": "[]" },
            { "code": "d", "target": "description.publication.date" },
            { "code": "e", "target": "description.publication.manufacture_place" },
            { "code": "g", "target": "description.publication.manufacturer" },
            { "code": "h", "target": "description.publication.manufacture_date" }
          ]
        },
        {
          "tag": "214",
          "subfields": [
            { "code": "a", "target": "description.publication.place", "trim": "[]" },
            { "code": "c", "target": "description.publication.publisher", "trim": "[]" },
            { "code": "d", "target": "description.publication.date" }
          ]
        },
        {
          "tag": "215",
          "subfields": [
            { "code": "a", "target": "description.physical_description.extent" },
            { "code": "b", "target": "description.physical_description.other_physical_details" },
            { "code": "c", "target": "description.physical_description.dimensions" },
            { "code": "d", "target": "description.physical_description.accompanying_material" }
          ]
        },
        {
          "tag": "225",
          "subfields": [
            { "code": "a", "target": "description.series.title" },
            { "code": "v", "target": "description.series.volume" },
            { "code": "x", "target": "description.series.issn" }
          ]
        },
        {
          "tag": "246",
          "subfields": [
            { "code": "a", "target": "description.varying_titles.title" },
            { "code": "e", "target": "description.varying_titles.remainder" }
          ]
        },
        {
          "tag": "326",
          "subfields": [
            { "code": "a", "target": "description.frequency" }
          ]
        }
      ]
    },
    {
      "id": "notes",
      "label": "3XX - Notes",
      "fields": [
        {
          "tag": "300",
          "defaults": { "note_type": "general" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "320",
          "defaults": { "note_type": "bibliography" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "322",
          "defaults": { "note_type": "credits" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "324",
          "defaults": { "note_type": "reproduction" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "327",
          "defaults": { "note_type": "contents" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "328",
          "defaults": { "note_type": "dissertation" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "330",
          "defaults": { "note_type": "summary" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        },
        {
          "tag": "337",
          "defaults": { "note_type": "systemDetails" },
          "subfields": [
            { "code": "a", "target": "notes.items.text" }
          ]
        }
      ]
    },
    {
      "id": "links",
      "label": "4XX - Linking entry",
      "fields": [
        {
          "tag": "410",
          "defaults": { "link_type": "series" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" },
            { "code": "v", "target": "links.records.volume" }
          ]
        },
        {
          "tag": "421",
          "defaults": { "link_type": "supplement" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "422",
          "defaults": { "link_type": "supplementParent" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "423",
          "defaults": { "link_type": "issuedWith" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "430",
          "defaults": { "link_type": "continues" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "440",
          "defaults": { "link_type": "continuedBy" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "451",
          "defaults": { "link_type": "otherEdition" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "452",
          "defaults": { "link_type": "otherEditionDiffLang" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "453",
          "defaults": { "link_type": "translation" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "454",
          "defaults": { "link_type": "translationOf" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        },
        {
          "tag": "461",
          "defaults": { "link_type": "setLevel" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" },
            { "code": "v", "target": "links.records.volume" }
          ]
        },
        {
          "tag": "462",
          "defaults": { "link_type": "subsetLevel" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" },
            { "code": "v", "target": "links.records.volume" }
          ]
        },
        {
          "tag": "463",
          "defaults": { "link_type": "pieceLevel" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" },
            { "code": "v", "target": "links.records.volume" }
          ]
        },
        {
          "tag": "464",
          "defaults": { "link_type": "hasPart" },
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" },
            { "code": "v", "target": "links.records.volume" }
          ]
        },
        {
          "tag": "488",
          "subfields": [
            { "code": "0", "target": "links.records.identifier" },
            { "code": "t", "target": "links.records.title" }
          ]
        }
      ]
    },
    {
      "id": "associated_titles",
      "label": "5XX - Related titles",
      "fields": [
        {
          "tag": "500",
          "subfields": [
            { "code": "a", "target": "associated_titles.uniform_title.main" },
            { "code": "e", "target": "associated_titles.uniform_title.subtitle" },
            { "code": "h", "target": "associated_titles.uniform_title.number_of_part" },
            { "code": "i", "target": "associated_titles.uniform_title.name_of_part" }
          ]
        },
        {
          "tag": "510",
          "subfields": [
            { "code": "a", "target": "description.title.parallel" }
          ]
        },
        {
          "tag": "517",
          "subfields": [
            { "code": "a", "target": "associated_titles.variant_titles.main" },
            { "code": "e", "target": "associated_titles.variant_titles.subtitle" }
          ]
        },
        {
          "tag": "520",
          "subfields": [
            { "code": "a", "target": "associated_titles.former_titles.main" },
            { "code": "e", "target": "associated_titles.former_titles.subtitle" }
          ]
        },
        {
          "tag": "530",
          "subfields": [
            { "code": "a", "target": "associated_titles.key_title.main" },
            { "code": "b", "target": "associated_titles.key_title.subtitle" }
          ]
        },
        {
          "tag": "531",
          "subfields": [
            { "code": "a", "target": "associated_titles.abbreviated_title" }
          ]
        },
        {
          "tag": "540",
          "subfields": [
            { "code": "a", "target": "associated_titles.variant_titles.main" }
          ]
        }
      ]
    },
    {
      "id": "indexing",
      "label": "6XX - Subject indexing",
      "fields": [
        {
          "tag": "600",
          "defaults": { "heading_type": "personal" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "601",
          "defaults": { "heading_type": "corporate" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "602",
          "defaults": { "heading_type": "personal" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "604",
          "defaults": { "heading_type": "personal" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "605",
          "defaults": { "heading_type": "uniformTitle" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "606",
          "defaults": { "heading_type": "topical" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "607",
          "defaults": { "heading_type": "geographic" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "608",
          "defaults": { "heading_type": "genre" },
          "subfields": [
            { "code": "a", "target": "indexing.subjects.value" }
          ]
        },
        {
          "tag": "610",
          "subfields": [
            { "code": "a", "target": "indexing.uncontrolled_terms" }
          ]
        },
        {
          "tag": "675",
          "defaults": { "scheme": "udc" },
          "subfields": [
            { "code": "a", "target": "indexing.classifications.number" }
          ]
        },
        {
          "tag": "676",
          "defaults": { "scheme": "dewey" },
          "subfields": [
            { "code": "a", "target": "indexing.classifications.number" }
          ]
        },
        {
          "tag": "680",
          "defaults": { "scheme": "lcc" },
          "subfields": [
            { "code": "a", "target": "indexing.classifications.number" }
          ]
        },
        {
          "tag": "686",
          "subfields": [
            { "code": "a", "target": "indexing.classifications.number" },
            { "code": "2", "target": "indexing.classifications.scheme" }
          ]
        }
      ]
    },
    {
      "id": "responsibility",
      "label": "7XX - Responsibility",
      "fields": [
        {
          "tag": "700",
          "type": "person",
          "subfields": [
            { "code": "a", "target": "responsibility.main_entry.name" },
            { "code": "b", "target": "responsibility.main_entry.forename" },
            { "code": "f", "target": "responsibility.main_entry.dates" },
            { "code": "c", "target": "responsibility.main_entry.titles_associated" },
            { "code": "4", "target": "responsibility.main_entry.relator" }
          ]
        },
        {
          "tag": "701",
          "type": "person",
          "subfields": [
            { "code": "a", "target": "responsibility.added_entries.name" },
            { "code": "b", "target": "responsibility.added_entries.forename" },
            { "code": "f", "target": "responsibility.added_entries.dates" },
            { "code": "c", "target": "responsibility.added_entries.titles_associated" },
            { "code": "4", "target": "responsibility.added_entries.relator" }
          ]
        },
        {
          "tag": "702",
          "type": "person",
          "subfields": [
            { "code": "a", "target": "responsibility.added_entries.name" },
            { "code": "b", "target": "responsibility.added_entries.forename" },
            { "code": "f", "target": "responsibility.added_entries.dates" },
            { "code": "c", "target": "responsibility.added_entries.titles_associated" },
            { "code": "4", "target": "responsibility.added_entries.relator" }
          ]
        },
        {
          "tag": "710",
          "type": "corporate_body",
          "subfields": [
            { "code": "a", "target": "responsibility.main_entry.name" },
            { "code": "b", "target": "responsibility.main_entry.subordinate_unit" },
            { "code": "e", "target": "responsibility.main_entry.location" },
            { "code": "f", "target": "responsibility.main_entry.date" }
          ]
        },
        {
          "tag": "711",
          "type": "corporate_body",
          "subfields": [
            { "code": "a", "target": "responsibility.added_entries.name" },
            { "code": "b", "target": "responsibility.added_entries.subordinate_unit" },
            { "code": "e", "target": "responsibility.added_entries.location" },
            { "code": "f", "target": "responsibility.added_entries.date" }
          ]
        },
        {
          "tag": "712",
          "type": "corporate_body",
          "subfields": [
            { "code": "a", "target": "responsibility.added_entries.name" },
            { "code": "b", "target": "responsibility.added_entries.subordinate_unit" },
            { "code": "e", "target": "responsibility.added_entries.location" },
            { "code": "f", "target": "responsibility.added_entries.date" }
          ]
        }
      ]
    },
    {
      "id": "international",
      "label": "8XX - International data",
      "fields": [
        {
          "tag": "801",
          "mandatory": true,
          "subfields": [
            { "code": "b", "target": "international.cataloging_sources.agency" },
            { "code": "a", "target": "international.cataloging_sources.country" },
            { "code": "c", "target": "international.cataloging_sources.date" },
            { "code": "g", "target": "international.cataloging_sources.transcription_conventions" }
          ]
        },
        {
          "tag": "850",
          "subfields": [
            { "code": "a", "target": "international.holding_institutions" }
          ]
        },
        {
          "tag": "852",
          "subfields": [
            { "code": "a", "target": "international.location_call_numbers.location" },
            { "code": "b", "target": "international.location_call_numbers.sublocation" },
            { "code": "c", "target": "international.location_call_numbers.shelving_location" },
            { "code": "h", "target": "international.location_call_numbers.classification_part" },
            { "code": "j", "target": "international.location_call_numbers.call_number" },
            { "code": "n", "target": "international.location_call_numbers.country_code" },
            { "code": "p", "target": "international.location_call_numbers.piece_designation" },
            { "code": "t", "target": "international.location_call_numbers.copy_number" }
          ]
        },
        {
          "tag": "856",
          "subfields": [
            { "code": "u", "target": "international.electronic_locations.uri" },
            { "code": "z", "target": "international.electronic_locations.public_note" }
          ]
        }
      ]
    },
    {
      "id": "local",
      "label": "9XX - National and local data",
      "fields": [
        {
          "tag": "995",
          "subfields": [
            { "code": "a", "target": "local.specimens.library" },
            { "code": "b", "target": "local.specimens.section" },
            { "code": "c", "target": "local.specimens.sub_library" },
            { "code": "d", "target": "local.specimens.section_code" },
            { "code": "f", "target": "local.specimens.barcode" },
            { "code": "k", "target": "local.specimens.call_number" },
            { "code": "l", "target": "local.specimens.inventory_number" },
            { "code": "m", "target": "local.specimens.creation_date" },
            { "code": "n", "target": "local.specimens.modification_date" },
            { "code": "r", "target": "local.specimens.item_type" },
            { "code": "t", "target": "local.specimens.record_control_number" },
            { "code": "v", "target": "local.specimens.document_type" },
            { "code": "w", "target": "local.specimens.circulation_status" }
          ]
        }
      ]
    }
  ]
}
