APA (7th ed.) Citation

Ray, J., & Ray, W. (2012). Sams Teach Yourself Xcode® 4 in 24 Hours (1st edition.). Sams.

Chicago Style (17th ed.) Citation

Ray, John, and William Ray. Sams Teach Yourself Xcode® 4 in 24 Hours. 1st edition. Sams, 2012.

MLA (9th ed.) Citation

Ray, John, and William Ray. Sams Teach Yourself Xcode® 4 in 24 Hours. 1st edition. Sams, 2012.

Warning: These citations may not always be 100% accurate.