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)
Example