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  1. USMARC format for bibliographic data : including guidelines for content designation (1994) 0.02 
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    Abstract
    Here is the standard for representing and exchanging bibliographic data in machine-readable form in the United States. This comprehensive publication defines the structure of the MARC bibliographic record in full detail. Also defines the codes and conventions (tags, indicators, subfield codes and codes values) that identify the data elements in USMARC bibliographic records. Includes specifications for a National Level Bibliographic record (both full and minimal). The remaining future format integration changes are specified
  2. USMARC format for classification data : including guidelines for content designation (1991) 0.02 
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    Abstract
    Format specifications for the communication of MARC classification records, which may be used in online public catalog retrieval systems, in systems to maintain and develop classification schedules, and in online systems for library classifiers. Defines the codes and conventions (tags, indicators, subfield codes, and codes values) that identify the data elements in the records. Developed to support the 2 major US classification schemes: Library of Congress Classification and Dewey Decimal Classification, but also lets you communicate other classification schemes. Includes a glossary of classification terms and full record examples of LCC, DDC, NLM classification and UDC
    Object
    USMARC for classification data
  3. USMARC format for authority data : including guidelines for content designation (1993) 0.01 
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