APA (7th ed.) Citation

Walter, J., & Graybill, C. (2006). The Zero: A novel. Harper Audio.

Chicago Style (17th ed.) Citation

Walter, Jess, and Christopher Graybill. The Zero: A Novel. New York: Harper Audio, 2006.

MLA (8th ed.) Citation

Walter, Jess, and Christopher Graybill. The Zero: A Novel. Harper Audio, 2006.

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