APA (7th ed.) Citation

Cicero, M. T., & Freeman, P. (2018). How to be a friend: An ancient guide to true friendship. Princeton University Press.

Chicago Style (17th ed.) Citation

Cicero, Marcus Tullius, and Philip Freeman. How to Be a Friend: An Ancient Guide to True Friendship. Princeton: Princeton University Press, 2018.

MLA (8th ed.) Citation

Cicero, Marcus Tullius, and Philip Freeman. How to Be a Friend: An Ancient Guide to True Friendship. Princeton University Press, 2018.