Παραπομπή σε μορφή APA (7η εκδ.)

Library of Congress & Library of Congress. Catalog Maintenance Division. Library of Congress catalog: Books: subjects; a cumulative list of works represented by Library of Congress printed cards. Library of Congress.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Library of Congress και Library of Congress. Catalog Maintenance Division. Library of Congress Catalog: Books: Subjects; a Cumulative List of Works Represented by Library of Congress Printed Cards. Washington: Library of Congress.

Παραπομπή σε μορφή MLA (8th εκδ.)

Library of Congress και Library of Congress. Catalog Maintenance Division. Library of Congress Catalog: Books: Subjects; a Cumulative List of Works Represented by Library of Congress Printed Cards. Library of Congress.