APA (7th ed.) Citation

Marcus Aurelius Emperor of Rome 121-180, Staniforth, M., & Cleanthes the Stoic. (1964). Meditations. Penguin Books.

Chicago Style (17th ed.) Citation

Marcus Aurelius Emperor of Rome 121-180, Maxwell Staniforth, and Cleanthes the Stoic. Meditations. Harmondsworth, Eng: Penguin Books, 1964.

MLA (9th ed.) Citation

Marcus Aurelius Emperor of Rome 121-180, et al. Meditations. Penguin Books, 1964.