Rails 4 in action / 
Ryan Bigg, Yehuda Katz, Steve Klabnik [and one other]. 
 - New York :  Manning Publications Co.,  2015. 
 - xxiii, 551 pages :  illustrations. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9781617291098 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ruby on rails (Electronic resource).<br/>Ruby (Computer program language).
<br/><br/><label>LC Class. No.: </label>QA 76.73.R83  / RAI 2015.