APA Citation

 Rappin, N. (2008).  Professional Ruby on Rails.  Wiley Publishing, Inc.

Chicago Style Citation

 Rappin, Noel.  Professional Ruby On Rails.  Wiley Publishing, Inc, 2008.

MLA Citation

 Rappin, Noel.  Professional Ruby On Rails.  Wiley Publishing, Inc, 2008.

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