APA (7th ed.) Citation

Dover Publications, Keys, C. N., & Stepniewski, W. Z. (1984). Rotary-wing aerodynamics. Dover Publications.

Chicago Style (17th ed.) Citation

Dover Publications, C. N. Keys, and Wieslaw Zenon Stepniewski. Rotary-wing Aerodynamics. New York: Dover Publications, 1984.

MLA (8th ed.) Citation

Dover Publications, et al. Rotary-wing Aerodynamics. Dover Publications, 1984.