(2006). Library of Congress subject headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service.
استشهاد بنمط شيكاغوLibrary of Congress Subject Headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service, 2006.
MLA استشهادLibrary of Congress Subject Headings. Wash., D.C: Libr. of Congress, Cataloging Distribution Service, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.