APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1939). Experimental study of torsional column failure. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Experimental Study of Torsional Column Failure. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Experimental Study of Torsional Column Failure. [s.n.], 1939.