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Concise Formats - 2008 Archive >> Bibliographic >> 001-006 >> 003

003 - Control Number Identifier (NR)

This is an ARCHIVED VERSION of the 2008 electronic edition of the MARC 21 Concise Formats. Please see loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

MARC code for the organization whose control number is contained in field 001 (Control Number).

See Appendix I: Organization Code Sources for a listing of sources used in MARC 21 records.