Cita APA (7th ed.)
Gary Bennett, M. F. Objective-C for Absolute Beginners: IPhone, iPad and Mac Programming Made Easy (2a edición.). Apress.
Cita Chicago (17th ed.)
Gary Bennett, Mitch Fisher. Objective-C for Absolute Beginners: IPhone, IPad and Mac Programming Made Easy. 2a edición. Berkeley, EUA: Apress.
Cita MLA (9th ed.)
Gary Bennett, Mitch Fisher. Objective-C for Absolute Beginners: IPhone, IPad and Mac Programming Made Easy. 2a edición. Apress.
Atenció: Aquestes cites poden no estar 100% correctes.