United States. National Advisory Committee for Aeronautics. (1939). The effects of surface waviness and of rib stitching on wing drag. [s.n.].
Chicago Style (17th ed.) CitationUnited States. National Advisory Committee for Aeronautics. The Effects of Surface Waviness and of Rib Stitching on Wing Drag. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. National Advisory Committee for Aeronautics. The Effects of Surface Waviness and of Rib Stitching on Wing Drag. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.