Subject headings used in the dictionary catalogs of the Library of Congress,
edited by Mary Wilson MacNair.

APA Citation

Library of Congress. Subject Cataloging Division. (1943). Subject headings used in the dictionary catalogs of the Library of Congress. 4th ed. ... Washington, D. C: [U. S. Govt. print. off.].

MLA Citation

Library of Congress. Subject Cataloging Division. Subject Headings Used In the Dictionary Catalogs of the Library of Congress. 4th ed. ... Washington, D. C: [U. S. Govt. print. off.], 1943.