APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1942). Control of Torsional Vibrations by Pendulum Masses. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Control of Torsional Vibrations by Pendulum Masses. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Control of Torsional Vibrations by Pendulum Masses. [s.n.], 1942.