APA (7th ed.) Citation

Parker, R. B., & Mantegna, J. (2011). Sixkill: A Spencer novel. Random House Audio.

Chicago Style (17th ed.) Citation

Parker, Robert B., and Joe Mantegna. Sixkill: A Spencer Novel. New York: Random House Audio, 2011.

MLA (8th ed.) Citation

Parker, Robert B., and Joe Mantegna. Sixkill: A Spencer Novel. Random House Audio, 2011.

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