APA (7th ed.) Citation

Butcher, J., & Marsters, J. (2009). Proven guilty: A novel of the Dresden files (Unabridged.). Penguin Audio.

Chicago Style (17th ed.) Citation

Butcher, Jim, and James Marsters. Proven Guilty: A Novel of the Dresden Files. Unabridged. New York: Penguin Audio, 2009.

MLA (8th ed.) Citation

Butcher, Jim, and James Marsters. Proven Guilty: A Novel of the Dresden Files. Unabridged. Penguin Audio, 2009.

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