MARC 6XX Subject Access Fields - General Information
MARC fields 6XX in the bibliographic format contains subject access entries and terms. This article gives general information about subject access fields. These fields are repeatable.
Commonly-used tags
Indicators
1st indicator – Differs depending on entry type
2nd indicator – 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 delimiters Varies depending on field, some constants across the 6XX fields are:
ǂ2 - Source of subject heading or term (NR)
ǂv - Form subdivision (R)
ǂx - General subdivision (R)
ǂy - Chronological subdivision (R)
ǂz - Geographic subdivision (R)
Policy and formulation
- For satires or other humorous material, use the $v Humor in addition to the 655 Satires.
Examples
600 1 0 Laud, William, $d 1573-164 $x Public opinion $v Humor $v Early works to 1800. 655 _ 7 Satires (document genre) $2 aat