APA (7th ed.) Citation

Library of Congress. Copyright Office. (1932). Renewal of copyright, 1st term of copyright is 28 years. U.S. GPO.

Chicago Style (17th ed.) Citation

Library of Congress. Copyright Office. Renewal of Copyright, 1st Term of Copyright Is 28 Years. Washington: U.S. GPO, 1932.

MLA (9th ed.) Citation

Library of Congress. Copyright Office. Renewal of Copyright, 1st Term of Copyright Is 28 Years. U.S. GPO, 1932.