Cita APA (7a ed.)

Welch, S. (2012). IOS 5 core frameworks: Develop and design : working with graphics, location, iCloud, and more. Peachpit Press.

Cita Chicago Style (17a ed.)

Welch, Shawn. IOS 5 Core Frameworks: Develop and Design : Working with Graphics, Location, ICloud, and More. Berkeley, CA: Peachpit Press, 2012.

Cita MLA (8a ed.)

Welch, Shawn. IOS 5 Core Frameworks: Develop and Design : Working with Graphics, Location, ICloud, and More. Peachpit Press, 2012.