Silverstein, A., & Wilson, H. A. (1938). Aerodynamic characteristics of a 4-engine monoplane showing effects of enclosing the engines in the wing and comparisons of tractor- and pusher-propeller arrangements. National Advisory Committee for Aeronautics.
Chicago Style (17th ed.) CitationSilverstein, Abe, and Herbert A. Wilson. Aerodynamic Characteristics of a 4-engine Monoplane Showing Effects of Enclosing the Engines in the Wing and Comparisons of Tractor- and Pusher-propeller Arrangements. Washington, D.C.: National Advisory Committee for Aeronautics, 1938.
MLA (8th ed.) CitationSilverstein, Abe, and Herbert A. Wilson. Aerodynamic Characteristics of a 4-engine Monoplane Showing Effects of Enclosing the Engines in the Wing and Comparisons of Tractor- and Pusher-propeller Arrangements. National Advisory Committee for Aeronautics, 1938.