Library of Congress >> MARC >> Community Information >> 01X-08X >> 070

070 - National Agricultural Library Classification Number (R)


MARC 21 Community Information - Full
January 2000

First Indicator
Undefined
# - Undefined

Second Indicator
Undefined
# - Undefined


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

FIELD DEFINITION AND SCOPE

Library of Congress classification number or another number assigned by the National Agricultural Library.

NAL assigns classification numbers from the Library of Congress Classification or LC Classification-Additions and Changes; two publications that are maintained by the Library of Congress.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

SUBFIELD CODES

$a - Classification number
Library of Congress classification number or another number assigned by NAL. The subfield may also contain a prefix.
110 2#$aGuyan Soil Conservation District.
070 ##$aS599$b.G89
$b - Item number
NAL item number or other designation.
110 2#$aAutomated Systems Users Group.
070 ##$aCominfo$b608
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.

INPUT CONVENTIONS

Punctuation - Field 070 does not end in a period unless the field ends in an abbreviation, initial/letter, or other data that ends in a period.
Capitalization - Alphabetic characters, excluding most of those occurring in a prefix, are usually uppercase.

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