APA (7th ed.) Citation

Lewis, D. M., & Boardman, J. (1994). Sicily, 413-368 B.C. The Cambridge ancient history ; 6: The fourth century B.C., 120-155.

Chicago Style (17th ed.) Citation

Lewis, David M., and John Boardman. "Sicily, 413-368 B.C." The Cambridge Ancient History ; 6: The Fourth Century B.C. 1994: 120-155.

MLA (8th ed.) Citation

Lewis, David M., and John Boardman. "Sicily, 413-368 B.C." The Cambridge Ancient History ; 6: The Fourth Century B.C., 1994, pp. 120-155.