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MARC21 Bibliographic Format
This online publication provides access to both the full and concise versions of the MARC 21 Format for Bibliographic Data. The "full" bibliographic format contains detailed descriptions of every data element, along with examples, input conventions, and history sections. The "concise" bibliographic format contains abridged descriptions of every data element, along with examples. The full and concise versions are identified in the header of each field description.