APA (7th ed.) Citation

Mitchell, Hirsh, & Valentine. (2006). A sniper's journey: The truth about the man behind the rifle. Caliber.

Chicago Style (17th ed.) Citation

Mitchell, Hirsh, and Valentine. A Sniper's Journey: The Truth About the Man Behind the Rifle. New York: Caliber, 2006.

MLA (8th ed.) Citation

Mitchell, et al. A Sniper's Journey: The Truth About the Man Behind the Rifle. Caliber, 2006.