Citazione Stile APA (7a Edizione)

United States Library of Congress. (1995). Subject headings (18th ed.). Library of Congress, Cataloging Distribution Service.

Citazione stile Chigago Style (17a edizione)

United States Library of Congress. Subject Headings. 18th ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1995.

Citatione MLA (9a ed.)

United States Library of Congress. Subject Headings. 18th ed. Library of Congress, Cataloging Distribution Service, 1995.