APA (7th ed.) Citation

Cicero, M. T. Letters of Marcus Tullius Cicero.

Chicago Style (17th ed.) Citation

Cicero, Marcus Tullius. Letters of Marcus Tullius Cicero.

MLA (9th ed.) Citation

Cicero, Marcus Tullius. Letters of Marcus Tullius Cicero.

Warning: These citations may not always be 100% accurate.