APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1931). The S.P.C.A. 40 T commercial airplane (French): An all-metal cantilever monoplane. National Advisory Committee for Aeronautics.

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. The S.P.C.A. 40 T Commercial Airplane (French): An All-metal Cantilever Monoplane. Washington, [D.C.]: National Advisory Committee for Aeronautics, 1931.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. The S.P.C.A. 40 T Commercial Airplane (French): An All-metal Cantilever Monoplane. National Advisory Committee for Aeronautics, 1931.