Library of Congress >> MARC >> Holdings >> 00X >> 003

003 - Control Number Identifier (NR)


MARC 21 Holdings - Concise
2007

MARC code for the agency whose system control number is present in field 001 (Control Number).

See Organization Code Sources for a listing of organization code sources used in MARC 21 records.

Examples
003 DLC
003 OCoLC
003 DNLM
003 CaOONL

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