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050 - Library of Congress Call Number (R)

MARC 21 LITE Bibliographic
April 2008

Classification or call number that is taken from Library of Congress Classification or LC Classification Additions and Changes. The brackets that customarily surround alternate class/call numbers are not carried in the MARC record; they may be generated based on the presence of repeated $a subfields.

[Link to MARC 21 Concise Formats]

Second - Source of call number
4 - Assigned by agency other than LC
Subfield Codes
$a - Classification number (R)
$b - Item number (NR)
Organizations that use the Cutter-Sanborn Three-Figure Author Table may conform to Library of Congress item number practice by applying Subject Cataloging Manual: Shelflisting conventions.
050 #4$aNB933.F44$bT6

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