Cita APA

(2011). Beginning iOS game center and game kit: For iphone, ipad, and ipod touch.

Citación estilo Chicago

Beginning IOS Game Center and Game Kit: For Iphone, Ipad, and Ipod Touch. 2011.

Cita MLA

Beginning IOS Game Center and Game Kit: For Iphone, Ipad, and Ipod Touch. 2011.

Precaución: Estas citas no son 100% exactas.