750 - Index Term-Topical (R)
MARC 21 Classification - Concise
2007
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 - Record control number (R)
$2 - Source of heading or term (NR)
$3 - Materials specified (NR)
$8 - Field link and sequence number (R)
Examples
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| 750 |
00$aWatergate Affair, 1972-1974.
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| 750 |
00$aMarriage with deceased wife's sister.
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| 750 |
00$aCivil rights$xReligious aspects.
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| 750 |
00$aAlcoholism$xHistory$y19th century.
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| 750 |
00$aRape$zSouthern States
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| 750 |
00$aTraveling exhibitions.
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| 750 |
00$aWorld War, 1939-1945$xMonuments$zFrance
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