Cicero, M. T., & Walsh, P. G. (1997). The nature of the gods. Clarendon Press.

Cicero, Marcus Tullius, and P. G. Walsh. The Nature of the Gods. New York: Clarendon Press, 1997.

Cicero, Marcus Tullius, and P. G. Walsh. The Nature of the Gods. Clarendon Press, 1997.