APA (7th ed.) Citation

United States. Patent Office. (1923). General information concerning patents. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Patent Office. General Information Concerning Patents. Washington: U.S. GPO, 1923.

MLA (9th ed.) Citation

United States. Patent Office. General Information Concerning Patents. U.S. GPO, 1923.

Warning: These citations may not always be 100% accurate.