APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1939). Tests of N. A. C. A. 23012 airfoil with slotted deflector flap. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Tests of N. A. C. A. 23012 Airfoil with Slotted Deflector Flap. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Tests of N. A. C. A. 23012 Airfoil with Slotted Deflector Flap. [s.n.], 1939.