APA (7th ed.) Citation

Shoales, I., & Kessler, M. (1988). Ian Shoales' perfect world. Penguin Books.

Chicago Style (17th ed.) Citation

Shoales, Ian, and Merle Kessler. Ian Shoales' Perfect World. New York: Penguin Books, 1988.

MLA (9th ed.) Citation

Shoales, Ian, and Merle Kessler. Ian Shoales' Perfect World. Penguin Books, 1988.