656 - Index Term-Occupation (R)
MARC 21 Bibliographic - Full
October 2007
First Indicator
Undefined
# - Undefined
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Second Indicator
Source of term
7 - Source specified in subfield $2
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Subfield Codes
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$a - Occupation (NR)
$k - Form (NR)
$v - Form subdivision (R)
$x - General subdivision (R)
$y - Chronological subdivision (R)
$z - Geographic subdivision (R)
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$0 - Authority record control number (R)
$2 - Source of term (NR)
$3 - Materials specified (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)
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FIELD DEFINITION AND SCOPE
Index term that is descriptive of the occupation (including avocation) reflected in the
contents of the described materials.
Not used to list the occupations of the creators of the described
materials, unless those occupations are significantly reflected in the materials
themselves or bear some relationship to the materials. Standard published lists are used
for the occupational terms and the list is identified in subfield $2 (Source
of term).
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
First Indicator - Undefined Undefined and contains a blank (#).
Second Indicator - Source of term Contains value 7 which indicates that the source of the index term is contained in
subfield $2.
■ SUBFIELD CODES
$a - Occupation Term specifying the occupation reflected in the contents of the described
material.
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| 656 |
#7$aAnthropologists.$2[thesaurus code]
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| 656 |
#7$aEducators.$2[thesaurus code]
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$k - Form Specific kinds of materials are distinguished by an examination of their physical
character, subject of their intellectual content, or the order of information
within them (e.g., daybooks, diaries, directories, journals, memoranda, etc.).
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| 656 |
#7$aMigrant laborers.$kSchool district case files.$2[thesaurus code]
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$v - Form subdivision Form subdivision that designates a specific kind or genre of material as defined
by the thesaurus being used. Subfield $v is appropriate only when a
form subject subdivision is added to an index term for occupation.
$x - General subdivision Subject subdivision that is not more appropriately contained in subfield
$v (Form subdivision), subfield $y (Chronological
subdivision), or $z (Geographic subdivision). Subfield $x is
appropriate only when a general topical subject subdivision is added to a
term.
$y - Chronological subdivision Subject subdivision that represents a period of time. Subfield $y is
appropriate only when a chronological subject subdivision is added to a term.
$z - Geographic subdivision Geographic subject subdivision. Subfield $z is appropriate only when a
geographic subject subdivision is added to a term.
$0 - Authority record control number
$3 - Materials specified Part of the described materials to which the field applies.
$8 - Field link and sequence number
INPUT CONVENTIONS
Punctuation - Subfield preceding subfield $2 in field 656 ends with a mark of punctuation
or a closing parenthesis.
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| 656 |
#7$aDentists.$2 [thesaurus code]
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Index term followed by a subject subdivision does not end with a mark of punctuation
unless the preceding term ends with an abbreviation, initial/letter, open date, or other
data that end with a mark of punctuation.
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| 656 |
#7$aChauffeurs$zFrance.$2 [thesaurus code]
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Spacing - No spaces are used
in initialisms, acronyms, or abbreviations.
Display Constant
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[dash associated with the content of subfield $v,
$x, $y, and $z] |
Dash ( - ) that precedes a subdivision in an extended subject heading is not carried in
the MARC record. It may be system generated as a display constant associated with the
content of subfield $v, $x, $y, and $z.
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Content designated field :
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| 656 |
#7$aPlastic surgeons$zLos Angeles (Calif.)$2[thesaurus code]
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Display example:
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Plastic surgeons-Los Angeles (Calif.)
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CONTENT DESIGNATOR HISTORY
$0 - Authority record control number [NEW, 2007]