APA (7th ed.) Citation

Sprenger, S., & Hayes, K. (2011). Ruby on Rails 3.1 Expertenwissen (1st edition.). dpunkt.

Chicago Style (17th ed.) Citation

Sprenger, Stefan, and Kieran Hayes. Ruby on Rails 3.1 Expertenwissen. 1st edition. dpunkt, 2011.

MLA (9th ed.) Citation

Sprenger, Stefan, and Kieran Hayes. Ruby on Rails 3.1 Expertenwissen. 1st edition. dpunkt, 2011.

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