648 - Subject Added Entry-Chronological Term (R)

MARC 21 Community Information - Concise

2007

Subject entry in which the first element is a chronological term.

Indicators

First - Undefined

# - Undefined

Second - ThesaurusThesaurus or authority file from which the heading came.

0 - Library of Congress Subject Headings

1 - LC subject headings for children's literature

2 - Medical Subject Headings

3 - National Agricultural Library subject authority file

4 - Source not specified

5 - Canadian Subject Headings

6 - Répertoire de vedettes-matière

7 - Source specified in subfield $2

Subfield Codes

$a - Chronological term (NR)

$v - Form subdivision (R)

$x - General subdivision (R)

$y - Chronological subdivision (R)

$z - Geographic subdivision (R)

$0 - Authority record control number (R)

See description of this subfield in Appendix A: Control Subfields.

$2 - Source of heading or term (NR)

Code from: Subject Heading and Term Source Codes.

$3 - Materials specified (NR)

$6 - Linkage (NR)

$8 - Field link and sequence number (R)

Examples

Library of Congress >> MARC >> Community Information >> 6XX >> 648

The Library of Congress >> Librarians, Archivists >> Standards >> MARC

(10/20/2010)