Citazione Stile APA (7a Edizione)

Library of Congress & Subjet Cataloging Division. (1998). Subject Headings (21th. ed.). The National Bibliographic Service.

Citazione stile Chigago Style (17a edizione)

Library of Congress e Subjet Cataloging Division. Subject Headings. 21th. ed. Washington: The National Bibliographic Service, 1998.

Citatione MLA (9a ed.)

Library of Congress e Subjet Cataloging Division. Subject Headings. 21th. ed. The National Bibliographic Service, 1998.