APA (7th ed.) Citation

U. S. Library of Congress. Catalog Division. (1919). Subject headings used in the dictionary catalogues of the Library of Congress (2nd ed.). Govt. Print. Off., Library Branch.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. Catalog Division. Subject Headings Used in the Dictionary Catalogues of the Library of Congress. 2nd ed. Washington: Govt. Print. Off., Library Branch, 1919.

MLA (9th ed.) Citation

U. S. Library of Congress. Catalog Division. Subject Headings Used in the Dictionary Catalogues of the Library of Congress. 2nd ed. Govt. Print. Off., Library Branch, 1919.