Library of Congress >> MARC >> Community Information >> 01X-08X >> 010

010 - Library of Congress Control Number (NR)


MARC 21 Community Information - Concise
2007

Unique number assigned to a MARC record by the Library of Congress.

Indicators
First - Undefined
# - Undefined
Second - Undefined
# - Undefined
Subfield Codes
$a - LC control number (NR)
$z - Canceled/invalid LC control number (R)
$8 - Field link and sequence number (R)
See description of this subfield in Appendix A: Control Subfields.
Example
010 ##$a##2001000001

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