APA (7th ed.) Citation

Library of Congress. Cataloging Policy and Support Office. (1994). Library of Congress classification. H. Social Sciences. Library of Congress, Cataloging Distribution Service.

Chicago Style (17th ed.) Citation

Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. H. Social Sciences. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1994.

MLA (9th ed.) Citation

Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. H. Social Sciences. Library of Congress, Cataloging Distribution Service, 1994.