APA (7th ed.) Citation

United States. War Department. (1917). Uniform regulations; changes numbers 20. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Uniform Regulations; Changes Numbers 20. [Washington]: GPO, 1917.

MLA (9th ed.) Citation

United States. War Department. Uniform Regulations; Changes Numbers 20. GPO, 1917.

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