6XX's Subject Entries

600     Subject added entry—personal name

610     Subject added entry—corporate name

650     Subject added entry—topical term

The fields in the 6XX section are designed to cover the various types of subject headings that are listed in either the Sears or Library of Congress subject heading books. These fields can be used over and over again, as many times as is necessary to include all of the specified subject headings. The most commonly used of these are the ones for personal name, corporate name, topical terms, and geographic terms. Each of these uses the second indicator to list the source of the subject heading (Sears, LC, etc.). The subfield codes for subject added entries are concerned with the initial subject heading, and the various types of subdivisions that might be added to that heading. Again, these vary considerably, so a manual illustrating the many options is a necessity.

650 0$aSchool libraries$zUnited States$xAdministration.

650 0$aMedia programs (Education)$zUnited States$xAdministration.

Here are the two subject heading entries in this MARC record. Both are for topical subject added entries. The ‘0’ indicator in the second place show that the subject headings are both from the Library of Congress subject headings list. Both subject headings have three subfields, ‘a’ for the topical term, ‘z’ for a geographic subdivision, and ‘x’ for a general subdivision. By labeling each type of subdivision with a different subfield code, the cataloger can easily indicate the purpose of the subdivisions in the MARC tagging.

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