APA (7th ed.) Citation

Ξενοφών, π. 4. 3., Warner, R., & Cawkwell, G. (1979). A history of my times. Penguin Books.

Chicago Style (17th ed.) Citation

Ξενοφών, π. 430-π. 350, Rex Warner, and George Cawkwell. A History of My Times. London: Penguin Books, 1979.

MLA (8th ed.) Citation

Ξενοφών, π. 430-π. 350, et al. A History of My Times. Penguin Books, 1979.