Library of Congress subject headings /
prepared by Subject Cataloging Division, Processing Services.

APA Citation

Library of Congress. Subject Cataloging Division. (1989). Library of Congress subject headings. 12th ed. Washington, D.C.: Cataloging Distribution Service, Library of Congress.

MLA Citation

Library of Congress. Subject Cataloging Division. Library of Congress Subject Headings. 12th ed. Washington, D.C.: Cataloging Distribution Service, Library of Congress, 1989.

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