MARC 21 Format for Classification Data: 750: Index Term-Topical (Network Development and MARC Standards Office, Library of Congress)

Topical term used as an index term that supplements terms derived from data in the MARC classification record. The term may be referred to in the classification number and caption in field 153 (Classification Number).

For descriptions of some subelements defined for this field, see the field 650 (Subject Added Entry--Topical Term) section of the MARC 21 Concise Format for Bibliographic Data.

Indicators

First - Level of subject: # - No information provided; 0 - No level specified; 1 - Primary subject; 2 - Secondary subject
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 entry element (NR)

$b - Topical term following geographic name entry element (NR)

$c - Location of event (NR)

$d - Active date (NR)

$i - Explanatory text (R)

$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 the description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI (R): See the description of this subfield in Appendix A: Control Subfields.

$2 - Source of heading or term (NR)

$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)

Examples

750

00$aWatergate Affair, 1972-1974.

750

00$aMarriage with deceased wife's sister.

750

00$aCivil rights$xReligious aspects.

750

00$aAlcoholism$xHistory$y19th century.

750

00$aRape$zSouthern States

750

00$aNurses.

750

00$aCookery (Fish)

750

00$aTraveling exhibitions.

750

00$aMusic$y500-1400

750

00$aWorld War, 1939-1945$xMonuments$zFrance

750 - Index Term-Topical (R)

Indicators

Subfield Codes

Examples