APA aipamena

(1992). Subject cataloging manual: Classsification. Cataloging Distribution Service, Library of Congress.

Chicago Style aipamena

Subject Cataloging Manual: Classsification. Washington, D.C: Cataloging Distribution Service, Library of Congress, 1992.

MLA aipamena

Subject Cataloging Manual: Classsification. Cataloging Distribution Service, Library of Congress, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.