APA (7th ed.) Citation

United States. War Department. (1918). Orders and regulations. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Orders and Regulations. [Washington]: GPO, 1918.

MLA (9th ed.) Citation

United States. War Department. Orders and Regulations. GPO, 1918.

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