APA ציטוט

(2006). Library of Congress subject headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service.

Trích dẫn kiểu Chicago

Library of Congress Subject Headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service, 2006.

ציטוט MLA

Library of Congress Subject Headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service, 2006.