Library of Congress >> MARC >> Bibliographic >> 01X-09X >> 042

042 - Authentication Code (NR)


MARC 21 Bibliographic - Concise
2007

One or more authentication codes indicating that the record, existing in a national database, has been reviewed in a specific way. Used for codes associated with specifically designated authentication agencies. Code from: MARC Authentication Action Code List.

Indicators
First - Undefined
# - Undefined
Second - Undefined
# - Undefined
Subfield Codes
$a - Authentication code (R)
Examples
042 ##$alc$ansdp
042 ##$ansdp$alcd
042 ##$alcnuc
042 ##$aissnuk

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