APA (7th ed.) Citation

United States. Army Air Forces. (1943). "Flight Strips", their need and use. [s.n.].

Chicago Style (17th ed.) Citation

United States. Army Air Forces. "Flight Strips", Their Need and Use. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

United States. Army Air Forces. "Flight Strips", Their Need and Use. [s.n.], 1943.