APA (7th ed.) Citation

Gamble, A., Carneiro, C., & Barazi, R. (2013). Beginning Rails 4, Third Edition (3rd edition.). Apress.

Chicago Style (17th ed.) Citation

Gamble, Adam, Cloves Carneiro, and Rida Barazi. Beginning Rails 4, Third Edition. 3rd edition. Apress, 2013.

MLA (9th ed.) Citation

Gamble, Adam, et al. Beginning Rails 4, Third Edition. 3rd edition. Apress, 2013.