APA (7th ed.) Citation

United States. Patent Office. (1943). Index of Trade-Marks Issued from the United States Patent Office, 1942. [s.n.].

Chicago Style (17th ed.) Citation

United States. Patent Office. Index of Trade-Marks Issued from the United States Patent Office, 1942. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

United States. Patent Office. Index of Trade-Marks Issued from the United States Patent Office, 1942. [s.n.], 1943.