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. (1993). Library of Congress subject headings (16th. ed.). Library of Congress.
Lua i Stíl Chicago (17ú heag.)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, agus Library of Congress. Policy and Standards Division. Library of Congress Subject Headings. 16th. ed. Washington: Library of Congress, 1993.
Lua MLA (9ú heag.)Library of Congress, et al. Library of Congress Subject Headings. 16th. ed. Library of Congress, 1993.