By Mirna Willer
The UNIMARC specialists structure was once designed within the early Nineteen Nineties to permit the construction of authority and reference files for the administration of managed entry issues in a bibliographic database. included during this paintings is suitable info from different IFLA operating teams and from UNIMARC clients. it truly is released less than the auspices of the IFLA Cataloguing part. this is often the third, thoroughly up-to-date and enlarged variation.
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Additional info for UNIMARC Manual: Authorities Format (Ifla Series on Bibliographic Control)
1st” is entered as “01” not “1”, “September” as “09” not “9”, to preserve the format. UNIMARC Manual – Authorities Format 44 July 2009 Format – 0-- Identification Block 015 INTERNATIONAL STANDARD AUTHORITY DATA NUMBER (OBSOLETE) History UNIMARC Authorities field 015, which had been reserved for the International Standard Authority Data Number, was made obsolete in accordance with IFLA’s decision not to pursue the idea of an ISADN as it had been defined. Institutions that have used field 015 for locally assigned ISADNs can convert this field into an appropriate 05- or 061 field.
When positions 13-14 contain “50” this will be used for the C0, C1 and G0 sets. Positions 15-20 will contain blanks. Examples: Transmission in an 8-bit code with G0 set of ISO 646 and G1 set of ISO extended Latin: 0103 Transmission in an 8-bit code made up of basic Cyrillic: 0102 Transmission in a 7-bit code using ISO 646 only: 01## 17-20 Additional Character Set Two two-character codes indicate up to two additional graphic character sets used in communication of the record. The codes are the same as those used in character positions 13-16.
Values for the character positions 5, 6-9, 17-19 may be translated from data in the source record by conversion program or, where UNIMARC is being used as the source format, assigned manually. 0-4 Record Length Five decimal digits, right justified, with zero fill where necessary, representing the number of characters in the entire record, including the label itself, the directory, and the variable fields. This data element is normally calculated automatically when the total record is assembled for exchange.