APA (7th ed.) Citation

United States. War Plans Division. (1918). Instructions for use of aerial observation in liaison with artillery. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. War Plans Division. Instructions for Use of Aerial Observation in Liaison with Artillery. Washington: U.S. GPO, 1918.

MLA (9th ed.) Citation

United States. War Plans Division. Instructions for Use of Aerial Observation in Liaison with Artillery. U.S. GPO, 1918.

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