APA (7th ed.) Citation

Gomperz, T., Magnus, L., & Berry, G. G. (1955). Greek thinkers: A history of ancient philosophy (Authorized ed. ..). Humanities Press.

Chicago Style (17th ed.) Citation

Gomperz, Theodor, Laurie Magnus, and George Godfrey Berry. Greek Thinkers: A History of Ancient Philosophy. Authorized ed. .. New York: Humanities Press, 1955.

MLA (9th ed.) Citation

Gomperz, Theodor, et al. Greek Thinkers: A History of Ancient Philosophy. Authorized ed. .. Humanities Press, 1955.