Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.