LC Guidelines: 050 Library of Congress Call Number
NACO:
Use this field in series authority records only.
Always use second indicator value 4.
Consult LC's Policy, Training, and Cooperative Programs Division before using subfield $0 or $1.
Do not use subfields: $6, $8
SACO:
Do not use this field.
LC:
NAMES/SERIES:
As of June 1, 2006, LC does not create or update SARs.
Note: Field 050 may contain call numbers that do not follow the Library of Congress classification schedules, for example:
050 00 $aLAW
050 00 $aMicrofilm 86/2592 (H)
050 00 $aWMLC L 82/1234
SUBJECTS:
Do not use this field.
For more information on LC Guidelines, select: