Daniel, S. F. (2012). iOS 5 essentials: Harness iOS 5's new powerful features to create stunning applications. Packt Pub..
芝加哥风格引文Daniel, Steven F. IOS 5 Essentials: Harness IOS 5's New Powerful Features to Create Stunning Applications. Birmingham, U.K.: Packt Pub., 2012.
MLA引文Daniel, Steven F. IOS 5 Essentials: Harness IOS 5's New Powerful Features to Create Stunning Applications. Packt Pub., 2012.
警告：这些引文格式不一定是100％准确.