Library of Congress. Copyright Office. (1938). Forty-first annual report of the register of copyrights, for the fiscal year ending June 30, 1938. [s.n.].
Chicago Style (17th ed.) CitationLibrary of Congress. Copyright Office. Forty-first Annual Report of the Register of Copyrights, for the Fiscal Year Ending June 30, 1938. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationLibrary of Congress. Copyright Office. Forty-first Annual Report of the Register of Copyrights, for the Fiscal Year Ending June 30, 1938. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.