004 Control Number for Related Bibliographic Record (NR) (Variable Control Fields)
Field Definition and Scope:
This field contains the system control number of the USMARC bibliographic record that represents the description of the item for which a separate holdings record was created. Field 004 links a separate holdings record to its related bibliographic record. For interchange purposes, documentation of the structure for the control number and input conventions are provided to exchange partners by the organization initiating the interchange. The related USMARC bibliographic record is distributed to the exchange partners prior to the distribution of a separate holdings record.
An organization receiving a separate holdings record may move the control number for the related bibliographic record of the distributing system from field 004 to one of the following 0XX control number fields and place its own related bibliographic record control number in field 004:
010 Library of Congress Control Number
Indicators and Subfield Codes:
This field has no indicators or subfield codes.
Input Conventions:
Embedded Holdings Information:
When holdings information is embedded in a related USMARC bibliographic record, field 004 is not input.
Related USMARC Document or Field:
010 Library of Congress Control Number
See also:
