APA (7th ed.) Citation

Adler-Olsen, J., Davies, E., & Hartford, L. (2011). The keeper of lost causes. Penguin Audio.

Chicago Style (17th ed.) Citation

Adler-Olsen, Jussi, Erik Davies, and Lisa Hartford. The Keeper of Lost Causes. New York, New York: Penguin Audio, 2011.

MLA (8th ed.) Citation

Adler-Olsen, Jussi, et al. The Keeper of Lost Causes. Penguin Audio, 2011.

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