APA (7th ed.) Citation

United States. Army. Air Corps. (1928). Civilian personnel: Retirement. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Civilian Personnel: Retirement. [Washington]: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Army. Air Corps. Civilian Personnel: Retirement. [publisher not identified], 1928.

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