General material designation
From Wikipedia, the free encyclopedia
General Material Designation (GMD) is a phrase or term interposed in brackets following the title of a catalogue or archive record to denote an item's material type. The usage of GMD in cataloging and classifying records was encouraged by the recording standard Anglo-American Cataloging Rules (AACR2).[1] It has been included in the International Standard Bibliographic Description as part of the ongoing process to standardize international and local cataloging standards.
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