OCLC-MARC records
OCLC-MARC records describes records produced since November 1993. It also lists documentation that describes records produced before November 1993.
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Get started with OCLC-MARC records.
About OCLC-MARC records
Record structure
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Find the basic structure for the leader, the directory, and the control and variable fields in OCLC-MARC bibliographic and authority records.
About record structure
General structure
Leader
Directory
Control and variable fields
Content designators for bibliographic data
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Find the elements of the leader, the directory, and the control and variable fields in OCLC-MARC bibliographic records.
Bibliographic record directory
Bibliographic record variable fields
Bibliographic record control field
Bibliographic record leader
Content designators for authority data
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Find the elements of the leader, the directory, and the control and variable fields in OCLC-MARC authority records.
Authority record variable fields
Authority control field
Authority record directory
Authority record leader
Control subfield ‡w
Content designators for holdings data
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Find information about content designators for holdings fields.
Riferimento
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Find additional resources for OCLC-MARC records.
Export specifications
Summary of processing changes
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Learn about the history of the 049 field, the communication format, and the OCLC number.
History of field 049
History of the communication format
History of the OCLC number