APA (7th ed.) Citation

Keliher, A. V., Hess, F., LeBron, M., & Modley, R. (1939). Air workers. Harper and Brothers.

Chicago Style (17th ed.) Citation

Keliher, Alice Virginia, Franz Hess, Marion LeBron, and Rudolf Modley. Air Workers. New York : London: Harper and Brothers, 1939.

MLA (8th ed.) Citation

Keliher, Alice Virginia, et al. Air Workers. Harper and Brothers, 1939.