APA (7th ed.) Citation

Suetonio Tranquilo, C. (1962). The twelve caesars. Penguin Books.

Chicago Style (17th ed.) Citation

Suetonio Tranquilo, Cayo. The Twelve Caesars. Harmondsworth [etc.]: Penguin Books, 1962.

MLA (9th ed.) Citation

Suetonio Tranquilo, Cayo. The Twelve Caesars. Penguin Books, 1962.

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