APA (7th ed.) Citation

Theodorsen, T., Brevoort, M. J., & Stickle, G. W. (1937). Cooling of airplane engines at low air speeds. NACA.

Chicago Style (17th ed.) Citation

Theodorsen, Theodore, M. J. Brevoort, and George W. Stickle. Cooling of Airplane Engines at Low Air Speeds. Washington: NACA, 1937.

MLA (9th ed.) Citation

Theodorsen, Theodore, et al. Cooling of Airplane Engines at Low Air Speeds. NACA, 1937.