Cita APA

Library of Congress. Catalog Division. (1910). Subject headings used in the dictionary catalogs of the Library of Congress. U.S. Govt. Print. Off., Library branch.

Citación estilo Chicago

Library of Congress. Catalog Division. Subject Headings Used in the Dictionary Catalogs of the Library of Congress. Washington, D.C.: U.S. Govt. Print. Off., Library branch, 1910.

Cita MLA

Library of Congress. Catalog Division. Subject Headings Used in the Dictionary Catalogs of the Library of Congress. U.S. Govt. Print. Off., Library branch, 1910.