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

648 - Subject Added Entry-Chronological Term (R)

MARC 21 Community Information - concise

December 2017

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

Indicators

First - Undefined: # - Undefined
Second - Thesaurus Thesaurus 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 or standard number (R): See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI (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

648	#7$a1900-1999$2fast
648	#7$a1862$2fast
648	#7$a1800-1899$2fast

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

(12/18/2017)