APA (7th ed.) Citation

United States. Army. Air Corps. (1919). Designation of Air Service recruits; amendment to Circular No. 268, War Department, 1919. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Designation of Air Service Recruits; Amendment to Circular No. 268, War Department, 1919. Washington: [publisher not identified], 1919.

MLA (9th ed.) Citation

United States. Army. Air Corps. Designation of Air Service Recruits; Amendment to Circular No. 268, War Department, 1919. [publisher not identified], 1919.