(1)The first subject heading should always be the one that most nearly corresponds to the classification number (i.e., the heading that represents the predominant topic of the work).

If a work has two equally important major topics, assign heading(s) for the second of these topics immediately after the heading(s) for the first, and before any headings for secondary topics.

For items including more than one geographic area tracing as well as at lest one topical heading for each place, the subject headings are arranged according to the topic treated, rather than grouped by area. Example:

Note that except for the heading that most closely approximates the class number, there is no set order for the presentation of the topics . They may be alphabetical, in the order they appear in the record, in order of importance, etc.

Subject headings constructed to include form subdivisions and form headings are usually the last subject headings given. Examples:

Just as there is no set order for the presentation of secondary topical headings, there is no set order for the presentation of multiple secondary geographic headings. They may be alphabetical, in the order they appeared in the record, in order of importance, etc.

See also:

Subject Access