Classification.
Class G, Geography, anthropology, folklore, manners and customs recreation.

APA Citation

Library of Congress. Subject Cataloging Division. (1954). Classification. 3d ed. Washington: [Govt. Print. Off.].

MLA Citation

Library of Congress. Subject Cataloging Division. Classification. 3d ed. Washington: [Govt. Print. Off.], 1954.

Warning: These citations may not always be complete (especially for serials).