APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.