Library of Congress classification. A. General works /
prepared by the Cataloging Policy and Support Office, Library Services.

APA Citation

Library of Congress., Library of Congress. Cataloging Policy and Support Office. (1998). Library of Congress classification. A. General works. 1998 ed. Washington, D.C.: Library of Congress.

MLA Citation

Library of Congress, and Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. A. General Works. 1998 ed. Washington, D.C.: Library of Congress, 1998.