United States. National Advisory Committee for Aeronautics. (1939). Effect of masses of controls on longitudinal stability with free elevator. [s.n.].
Chicago Style (17th ed.) CitationUnited States. National Advisory Committee for Aeronautics. Effect of Masses of Controls on Longitudinal Stability with Free Elevator. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. National Advisory Committee for Aeronautics. Effect of Masses of Controls on Longitudinal Stability with Free Elevator. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.