A term added to a subject heading to specify the period in time in relation to a family which the subject heading represents. Repeatable.
$2 System Code
An identification in coded form of the system from which the subject heading is derived. Not repeatable. It is recommended that subfield $2 always be present in each occurrence of the field.
$3 Authority Record Number
The control number for the authority record for the heading. This subfield is for use with UNIMARC/Authorities. Repeatable.
Notes on Field Contents
This field is intended for recording headings for family names used as subjects. These headings are structured in the same form as name headings for a family responsible for the content of an item. Subfield $a includes the name of the family and any qualification such as '(Family)' or '(Clan)'. Such qualifications should retain their punctuation in the subfield.
This field can contain more than the name of the family in subfield $a. In addition, terms may be added to the subject heading to further specify it with respect to form, topic, place or time. These follow the rules of the subject heading system used.
600 PERSONAL NAME USED AS SUBJECT
When a person rather than a family name is the subject, field 600 is used.
When the subject is an author/title, field 604 is used.
EX 1: 602 ##$aSwinnerton (Family)$jPeriodicals$21c
A subject heading assigned to a document entitled Swinnerton family history : heraldic and genealogical studies of the Swinnerton family.
EX 2: 602 ##$aArchaemenid dynasty,$f559 330 B.C.
EX 3: 602 ##$3029725259$aChoiseul (famille de)$3027244636$xPatrimoine$3027794512 $z18e siècle$2rameau
In the database, a pre-coordinated subject system code (rameau) is used, so the $3 is repeated and one authority record number is given for each part of the heading.
604 NAME AND TITLE USED AS SUBJECT
This field contains an author and title of a work which is one of the subjects of the item. The field is structured like the 4 Linking Entry fields, Embedded fields technique or Standard subfields technique.
The name of the person, corporate body or family with primary responsibility for the item registered in subfield $t. When subfield $a is a composite of more than one standard subfield use punctuation to separate the elements. Mandatory. Not repeatable.
The title by which the work is known. When subfield $t is a composite of more than one standard subfield use ISBD punctuation to separate the elements. Mandatory. Not repeatable.
$j Form subdivision
A term added to a subject heading to further specify the kind(s) or genre(s) of material. Agencies not using this subdivision should use $x instead. Repeatable.
$x Topical subdivision
A term added to a subject heading to specify further the topic that the heading represents. Repeatable.
$y Geographical subdivision
A term added to a subject heading to specify a place in relation to the collective uniform name/title which the subject heading represents. Repeatable.