Cita APA (7a ed.)

Sadun, E. A. (2011). The IOS 4 developer's cookbook core concepts and essential recipes for iOS programmers (Special electronic only ed.). Addison Wesley Professional.

Cita Chicago Style (17a ed.)

Sadun, Erica Author. The IOS 4 Developer's Cookbook Core Concepts and Essential Recipes for IOS Programmers. Special electronic only ed. [Place of publication not identified]: Addison Wesley Professional, 2011.

Cita MLA (9a ed.)

Sadun, Erica Author. The IOS 4 Developer's Cookbook Core Concepts and Essential Recipes for IOS Programmers. Special electronic only ed. Addison Wesley Professional, 2011.