754 Index Term - Faceted Topical Terms (R) (Variable Data Field)
Field definition and scope: This field contains a topical subject constructed from a faceted vocabulary. For each term found in the field, an identification is given as to the facet / hierarchy in the thesaurus from which the term came. In addition, identification is given as to which term is the focus term of the expression.
Field 754 is repeatable.
Guidelines for applying Content Designators: [Guidelines for applying the content designators for this field are provided in the USMARC Format for Bibliographic Data: field 654 (Subject Added Entry - Faceted Topical Term).]
Indicators
First Level of subject
# No information available (# indicates a blank )
0 No level specified
1 Primary
2 Secondary
Second Undefined; contains a blank (#)
Subfield Codes
$a Focus term (NR)
$b Term (R)
$c Facet/heirarchy designation (R)
$2 Source of heading or term (NR)
$3 Materials specified (NR)
Related USMARC field or document:
USMARC Format for Bibliographic Data:
See also:
