APA (7th ed.) Citation

Cicero, M. T., & Shackleton Bailey, D. R. (1980). Select letters. Cambridge University Press.

Chicago Style (17th ed.) Citation

Cicero, Marcus Tullius, and D. R. Shackleton Bailey. Select Letters. Cambridge ; New York: Cambridge University Press, 1980.

MLA (9th ed.) Citation

Cicero, Marcus Tullius, and D. R. Shackleton Bailey. Select Letters. Cambridge University Press, 1980.