APA (7th ed.) Citation

United States. Army. Air Corps. (1921). Tip-vortices shown by McCook Field wind tunnel (Airplane Section report). [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Tip-vortices Shown by McCook Field Wind Tunnel (Airplane Section Report). [Place of publication not identified]: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. Army. Air Corps. Tip-vortices Shown by McCook Field Wind Tunnel (Airplane Section Report). [publisher not identified], 1921.

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