Cita APA (7a ed.)

Campbell, M. (2014). Objective-C quick syntax reference. Apress.

Cita Chicago Style (17a ed.)

Campbell, Matthew. Objective-C Quick Syntax Reference. [Berkeley, CA]: Apress, 2014.

Cita MLA (8a ed.)

Campbell, Matthew. Objective-C Quick Syntax Reference. Apress, 2014.