APA (7th ed.) Citation

United States. Army. Ordnance Department. (1919). Office practice and forms of correspondence. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Ordnance Department. Office Practice and Forms of Correspondence. Washington: U.S. GPO, 1919.

MLA (9th ed.) Citation

United States. Army. Ordnance Department. Office Practice and Forms of Correspondence. U.S. GPO, 1919.

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