Authority 042

Kezdőlap - A MARC21 authority formátum - Authority 01X-09X

First Indicator

Undefined

'#' - Undefined

Second Indicator

Undefined

'#' - Undefined

Subfield Codes

$a - Authentication code (R)

FIELD DEFINITION AND SCOPE

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.

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

Both indicator positions are undefined; each contains a blank (#).

SUBFIELD CODES

$a - Authentication code

If more than one code is applicable, the subfield is repeated. Code from: MARC Authentication Action Code List.

INPUT CONVENTIONS

Capitalization - All codes are recorded in lowercase alphabetic characters.