072 Subject Category Code (R)
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BIB |
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Input Standards |
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| Field (Full/Minimal) | ||
| Optional/Optional | ||
| 1st Indicator Undefined | ||
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Undefined | |
| 2nd Indicator Code source | ||
| 0 | NAL subject category code list | |
| 7 | Source specified in subfield ǂ2 | |
| Subfields (R=Repeatable NR=Nonrepeatable) | Input Standards (Full/Minimal) | |
| ǂa | Subject category code (NR) | Mandatory/Mandatory |
| ǂx | Subject category code subdivision (R) | Required if applicable/Required if applicable |
| ǂ2 | Source (NR) | Required if applicable/Required if applicable |
| ǂ6 | Linkage (NR) | System supplied/System supplied |
| ǂ8 | Field link and sequence number (R) | Optional/Optional |
Definition |
Codes that identify subject categories. Subject category codes are taken from controlled lists of codes. You may repeat field 072 for multiple subject category codes. |
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1st Indicator |
Undefined. The 1st indicator is undefined and contains a blank.
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2nd indicator |
Code source. Identifies the subject category code. |
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Subfields |
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| ǂa Subject category code | The subject category code.
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| ǂx Subject category code subdivision | A subdivision of the code in subfield ǂa.
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| ǂ2 Source | The source of the subject category. Use subfield ǂ2 if the 2nd indicator value is 7. See MARC Subject Category Code Source Codes. For information about subfield ǂ2, see Control Subfields.
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| ǂ6 Linkage | Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields. |
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| ǂ8 Field link and sequence number | For information about subfield ǂ8, see Control Subfields. |
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Indexing |
Field 072 is not indexed. |
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MARC 21 |
For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 072. |