APA (7th ed.) Citation

Cicero, M. T., & Williams, W. G. (1965). Letters to his friends. Heinemann ; Harvard University Press.

Chicago Style (17th ed.) Citation

Cicero, Marcus Tullius, and W. Glynn Williams. Letters to His Friends. London : Cambridge, Mass.: Heinemann ; Harvard University Press, 1965.

MLA (9th ed.) Citation

Cicero, Marcus Tullius, and W. Glynn Williams. Letters to His Friends. Heinemann ; Harvard University Press, 1965.