042 - Authentication Code (NR)


MARC 21 Authority - Concise
2007

This is an ARCHIVED VERSION of the 2009/2010 electronic edition of the MARC 21 Concise Formats. Please see loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

One or more authentication codes indicating that the record, existing in a national database, has been reviewed in a specific way. The codes are associated with specifically designated authentication agencies.

Indicators
First - Undefined
# - Undefined
Second - Undefined
# - Undefined
Subfield Codes
$a - Authentication code (R)
If more than one code is applicable, the subfield is repeated. Code from: MARC Authentication Action Code List.

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