Library of Congress >> MARC >> Classification >> 01X-084 >> 010

010 - Library of Congress Control Number (NR)


MARC 21 Classification - Concise
2007

Unique number assigned to a classification 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)
$8 - Field link and sequence number (R)
See the description of this subfield in Appendix A: Control Subfields.
Examples
010 ##$acf#90000001#
010 ##$acf#80022124#$zcf#80014241#

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