Library of Congress >> MARC >> Bibliographic >> 01X-09X >> 071

071 - National Agricultural Library Copy Statement (R)


MARC 21 Bibliographic - Full
February 1999

First Indicator
Undefined
# - Undefined

Second Indicator
Undefined
# - Undefined


Subfield Codes
$a - Classification number (R)
$b - Item number (NR)
$c - Copy information (R)
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Call number and other information added to a bibliographic record by the National Agricultural Library (NAL) that relates to second copies or sets of the described item that are in its collections.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

SUBFIELD CODES

$a - Classification number
Classification number portion of the NAL call number. Prior to 1965, NAL used a USDA library classification scheme. In 1965 NAL began using the Library of Congress Classification for all newly-cataloged materials. Both schemes are still used. Subfield $a is repeated to record alternative classification numbers.
$b - Item number
NAL item number.
$c - Copy information
Information relating to second and subsequent copies or sets.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.

CONTENT DESIGNATOR HISTORY

Indicator 2 - Series call number (SE) [OBSOLETE]
In the serials specifications, the use of the second indicator position to indicate the type of series was made obsolete in 1976. The values were: 0 (No series involved), 1 (Main series), 2 (Subseries), 3 (Sub-subseries).

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