Library of Congress, Library of Congress. Subject Cataloging Division, Library of Congress. Office for Subject Cataloging Policy, Library of Congress. Cataloging Policy and Support Office, & Library of Congress. Policy and Standards Division. (2000). Library of Congress subject headings (23RD. ed.). Library of Congress.

Library of Congress, Library of Congress. Subject Cataloging Division, Library of Congress. Office for Subject Cataloging Policy, Library of Congress. Cataloging Policy and Support Office, and Library of Congress. Policy and Standards Division. Library of Congress Subject Headings. 23RD. ed. Washington: Library of Congress, 2000.

Library of Congress, et al. Library of Congress Subject Headings. 23RD. ed. Library of Congress, 2000.