APA (7th ed.) Citation

Norman, C. A., Ault, E. S., & Zarobsky, I. F. (1938). Fundamentals of machine design. Macmillan.

Chicago Style (17th ed.) Citation

Norman, Carl Adolph, Eugene Stanley Ault, and Ivan F. Zarobsky. Fundamentals of Machine Design. New York: Macmillan, 1938.

MLA (9th ed.) Citation

Norman, Carl Adolph, et al. Fundamentals of Machine Design. Macmillan, 1938.