APA (7th ed.) Citation

United States. Army. Chemical Warfare Service. (1920). Assignment of recruits for Chemical Warfare Service; amendment to Circular No. 463, War Department, 1919. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Chemical Warfare Service. Assignment of Recruits for Chemical Warfare Service; Amendment to Circular No. 463, War Department, 1919. Washington: [publisher not identified], 1920.

MLA (9th ed.) Citation

United States. Army. Chemical Warfare Service. Assignment of Recruits for Chemical Warfare Service; Amendment to Circular No. 463, War Department, 1919. [publisher not identified], 1920.