First Indicator Undefined # - Undefined |
Second Indicator Undefined # - Undefined |
Subfield Codes |
|
$a - Classification number (NR) $b - Item number (NR) $d - Volumes/dates to which call number applies (NR) |
$6 - Linkage (NR) $8 - Field link and sequence number (R) |
Call number assigned by the National Agricultural Library (NAL) to a series when all or part of the series is classified as a collected set or with the main series (646, Series Classification Practice, subfield $a, code c or m).
Used only for class numbers and call numbers assigned by NAL. May also contain NAL accession numbers for visual materials.
May also contain the volumes/dates to which the number applies. Varying numbers for different ranges of volumes/dates within a series are contained in separate 070 fields.
Prior to 1965, NAL used a USDA library classification scheme. In 1965, NAL began using the Library of Congress Classification for all newly-cataloged materials. Both schemes are still used because some series title changes have been kept with the USDA scheme call number.
070 | ##$a99.8$bF76322 [Number assigned from the USDA library scheme] |
070 | ##$aQH545.A$bT6 [Number assigned from the LC classification scheme] |
(03/03/2008) | Contact Us |