Cita APA

Library of Congress. (1996). Subject headings. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Chicago Style Citation

Library of Congress. Subject Headings. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1996.

Cita MLA

Library of Congress. Subject Headings. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1996.

Atenció: Aquestes cites poden no estar 100% correctes.