APA (7th ed.) Citation

U.S. Library of Congress. (1945). A guide to the official publications of the other American republics. s. n.

Chicago Style (17th ed.) Citation

U.S. Library of Congress. A Guide to the Official Publications of the Other American Republics. Washington: s. n, 1945.

MLA (9th ed.) Citation

U.S. Library of Congress. A Guide to the Official Publications of the Other American Republics. s. n, 1945.