15.2.4. Level of specificity and overlapping headings
Assign headings only at one level of the same subject hierarchy, being as specific as possible. For example, the Journal of Hospital Care would receive the subject heading Hospital care- - Periodicals, but not Medical care- -Periodicals. While the latter heading includes hospital care, it also includes many other types of medical care that are not covered by the periodical. Example:
Exceptionally, when a serial’s title indicates coverage of subjects at different levels, assign overlapping headings. This may also be done to reflect the organization of a serial that is primarily general but has a significant section on a specific narrower topic. Example:
Exceptionally, when a serial’s title indicates coverage of subjects at different levels, assign overlapping headings. This may also be done to reflect the organization of a serial that is primarily general but has a significant section on a specific narrower topic. Example:
See also: