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

042 - Authentication Code (NR)

MARC 21 Authority - Concise

2007

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.

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

(03/03/2008)