Subject headings used in the dictionary catalogs of the Library of Congress

MLA

Library of Congress. Subject headings used in the dictionary catalogs of the Library of Congress. Washington, D.C. : [G.P.O.], 1943-1966.

APA

Library of Congress. (1943). Subject headings used in the dictionary catalogs of the Library of Congress. Washington, D.C. : [G.P.O.].

Chicago

Library of Congress. Subject headings used in the dictionary catalogs of the Library of Congress. Washington, D.C. : [G.P.O.], 1943-1966.