APA (7th ed.) Citation

Kyle, C., McEwen, S., & DeFelice, J. (2012). American sniper: The autobiography of the most lethal sniper in U.S. military history. W. Morrow.

Chicago Style (17th ed.) Citation

Kyle, Chris, Scott McEwen, and Jim DeFelice. American Sniper: The Autobiography of the Most Lethal Sniper in U.S. Military History. New York: W. Morrow, 2012.

MLA (8th ed.) Citation

Kyle, Chris, et al. American Sniper: The Autobiography of the Most Lethal Sniper in U.S. Military History. W. Morrow, 2012.

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