APA (7th ed.) Citation

Voltaire. (1972). Philosophical dictionary. Penguin Books.

Chicago Style (17th ed.) Citation

Voltaire. Philosophical Dictionary. Harmondsworth ; Baltimore: Penguin Books, 1972.

MLA (9th ed.) Citation

Voltaire. Philosophical Dictionary. Penguin Books, 1972.

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