Booker, A. M., & Walters, J. D. (2014). Learning objective-C by developing iPhone games: Leverage Xcode and objective-C to develop iPhone games. Packt Publishing.
芝加哥风格引文Booker, Amy M., 与 Joseph D. Walters. Learning Objective-C by Developing IPhone Games: Leverage Xcode and Objective-C to Develop IPhone Games. Birmingham, England: Packt Publishing, 2014.
MLA引文Booker, Amy M., 与 Joseph D. Walters. Learning Objective-C by Developing IPhone Games: Leverage Xcode and Objective-C to Develop IPhone Games. Packt Publishing, 2014.
警告：这些引文格式不一定是100％准确.