Cita APA (7a ed.)

(1931). Subject headings used in the dictionary catalogues of the Library of Congress. Government Printing Office.

Cita Chicago Style (17a ed.)

Subject Headings Used in the Dictionary Catalogues of the Library of Congress. Washington, D.C: Government Printing Office, 1931.

Cita MLA (9a ed.)

Subject Headings Used in the Dictionary Catalogues of the Library of Congress. Government Printing Office, 1931.