The former numbers will continue to be used only to class new continuations of serials that are already classed in those numbers. The Library of Congress began applying this revised subclass to newly cataloged materials on February 8, 1999. Sociology Class here works that are primarily theoretical in orientation. Many topics provided for here represent concepts also encompassed by the discipline of ethnology in GN301- GN673.
Class here works that deal principally with modern civilization.
Encyclopedias 427 Terminology. Notation 429 Directories History of sociology. 467 Frankfurt school Marxian school Cf. 481 Ethnomethodology 484 Functionalism. 487 Historical sociology Cf.