APA Style

Kyle, C, 1. et al (2013). American sniper : the autobiography of the most lethal sniper in U.S. military history / Chris Kyle ; with Scott McEwen and Jim DeFelice (2). New York, NY: HarperCollins.

MLA Style

Kyle, Chris,, 1974-2013. et al. "American sniper : the autobiography of the most lethal sniper in U.S. military history / Chris Kyle ; with Scott McEwen and Jim DeFelice". 2 New York, NY: HarperCollins, 2013. หนังสือ (Book).