APA (7th ed.) Citation

Forman, G., & Potter, K. (2009). If I stay (Unabridged.). Penguin Audio.

Chicago Style (17th ed.) Citation

Forman, Gayle, and Kirsten Potter. If I Stay. Unabridged. New York: Penguin Audio, 2009.

MLA (9th ed.) Citation

Forman, Gayle, and Kirsten Potter. If I Stay. Unabridged. Penguin Audio, 2009.