APA (7th ed.) Citation

United States. War Department. (1918). Small arms firing manual; changes numbers 23. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Small Arms Firing Manual; Changes Numbers 23. [Washington]: GPO, 1918.

MLA (9th ed.) Citation

United States. War Department. Small Arms Firing Manual; Changes Numbers 23. GPO, 1918.

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