APA (7th ed.) Citation

Silone, I., David, G., & Mosbacher, E. (1938). The school for dictators. Harper & Brothers.

Chicago Style (17th ed.) Citation

Silone, Ignazio, Gwenda David, and Eric Mosbacher. The School for Dictators. New York: Harper & Brothers, 1938.

MLA (9th ed.) Citation

Silone, Ignazio, et al. The School for Dictators. Harper & Brothers, 1938.