Cita APA (7a ed.)

Harrington, J., Harrington, J. C., & Hatheway, J. C. (2011). iOS 4 in action: Examples and solutions for iPhone & iPad (1st edition.). Manning.

Cita Chicago Style (17a ed.)

Harrington, Jocelyn, Jocelyn Contributor Harrington, y James Contributor Hatheway. IOS 4 in Action: Examples and Solutions for IPhone & IPad. 1st edition. [Place of publication not identified]: Manning, 2011.

Cita MLA (9a ed.)

Harrington, Jocelyn, et al. IOS 4 in Action: Examples and Solutions for IPhone & IPad. 1st edition. Manning, 2011.