Library of Congress. Subject Cataloging Division., Gale Research Company., & Library of Congress. Classification Division. (1976). Classification. Class G. Geography, maps, anthropology, recreation (4th ed.). Washington: Library of Congress.
Chicago Style CitationLibrary of Congress. Subject Cataloging Division., Gale Research Company, and Library of Congress. Classification Division. Classification. Class G. Geography, Maps, Anthropology, Recreation. 4th ed. Washington: Library of Congress, 1976.
MLA CitationLibrary of Congress. Subject Cataloging Division., Gale Research Company, and Library of Congress. Classification Division. Classification. Class G. Geography, Maps, Anthropology, Recreation. 4th ed. Washington: Library of Congress, 1976.