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650 - Subject Added Entry-Topical Term (R)


MARC 21 Community Information - Concise
2007

Topical subject used as a subject added entry.

Indicators
First - Level of subject
# - No information available
0 - No level specified
1 - Primary
2 - Secondary
Second - Thesaurus
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 - Topical term or geographic name as entry element (NR)
$b - Topical term following geographic name as entry element (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)
MARC code that identifies the source list from which the heading or term in a Subject Added Entry field was assigned. Code from: Subject Heading and Term Source Codes.
$3 - Materials specified (NR)
$6 - Linkage (NR)
See the description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number (R)
See the description of this subfield in Appendix A: Control Subfields.
Examples
650 #0$aHousing.
650 00$aImmunization.
650 17$aCareer Exploration.$2ericd
650 27$aJunior High Schools.$2ericd
650 #0$aMeals on wheels programs.
650 #0$aNursing home care.
650 #0$aNutrition disorders.
650 #0$aVocal music$zFrance$y18th century.
650 #0$aDentistry$xResearch.
650 #0$aReal property$zMississippi$zTippah County.
650 #7$aFood Service.$2ericd
650 17$aCareer Exploration.$2ericd

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