APA引文

(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.

MLA引文

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

警告：這些引文格式不一定是100％准確.