United States. National Advisory Committee for Aeronautics. (1939). Propeller tests to determine the effect of number of blades at two typical solidities. [s.n.].
Chicago Style (17th ed.) CitationUnited States. National Advisory Committee for Aeronautics. Propeller Tests to Determine the Effect of Number of Blades at Two Typical Solidities. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. National Advisory Committee for Aeronautics. Propeller Tests to Determine the Effect of Number of Blades at Two Typical Solidities. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.