APA (7th ed.) Citation

Hartl, M. (2012). Ruby on Rails, Second Edition (2nd edition.). Addison-Wesley Professional.

Chicago Style (17th ed.) Citation

Hartl, Michael. Ruby on Rails, Second Edition. 2nd edition. Addison-Wesley Professional, 2012.

MLA (9th ed.) Citation

Hartl, Michael. Ruby on Rails, Second Edition. 2nd edition. Addison-Wesley Professional, 2012.

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