APA (7th ed.) Citation

Kyle, C. (2014). American sniper: : the autobiography of the most lethal sniper in U. S. history. Harper-Collins Publishers.

Chicago Style (17th ed.) Citation

Kyle, Chris. American Sniper: : The Autobiography of the Most Lethal Sniper in U. S. History. New York: Harper-Collins Publishers, 2014.

MLA (9th ed.) Citation

Kyle, Chris. American Sniper: : The Autobiography of the Most Lethal Sniper in U. S. History. Harper-Collins Publishers, 2014.