APA-viite

(1998). Library of Congress subject headings. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Chicago-tyylinen lähdeviittaus

Library of Congress Subject Headings. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1998.

MLA-viite

Library of Congress Subject Headings. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1998.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.