Free-space oscillating pressures near the tips of rotating propellers /
Harvey H. Hubbard and Arthur A. Regier.

APA Citation

Hubbard, H. H., Regier, A. A., United States. National Advisory Committee for Aeronautics. (1949). Free-space oscillating pressures near the tips of rotating propellers. Washington, D.C.: National Advisory Committee for Aeronautics.

MLA Citation

Hubbard, Harvey H, Arthur A Regier, and United States. National Advisory Committee for Aeronautics. Free-space Oscillating Pressures Near the Tips of Rotating Propellers. Washington, D.C.: National Advisory Committee for Aeronautics, 1949.