Richter, K. (2011). Beginning iOS game center and game kit: For iPhone, iPad and iPod Touch (1st ed. 2011.). Apress.
Chicago Style (17th ed.) CitationRichter, Kyle. Beginning IOS Game Center and Game Kit: For IPhone, IPad and IPod Touch. 1st ed. 2011. [Berkeley, Calif.]: Apress, 2011.
MLA (9th ed.) CitationRichter, Kyle. Beginning IOS Game Center and Game Kit: For IPhone, IPad and IPod Touch. 1st ed. 2011. Apress, 2011.
Warning: These citations may not always be 100% accurate.