APA (7th ed.) Citation

Voltaire. (1972). The best of all possible worlds: Romances and tales. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Voltaire. The Best of All Possible Worlds: Romances and Tales. Freeport, N.Y.: Books for Libraries Press, 1972.

MLA (9th ed.) Citation

Voltaire. The Best of All Possible Worlds: Romances and Tales. Books for Libraries Press, 1972.

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