Olsen, Russ <br/><br/>
Design patterns in Ruby / 
Russ Olsen 
 - Upper Saddle River, New Jersey :  Addison-Wesley,  2008 
 - xxvii, 352 p. :  ill. ;  25 cm. 
 - Addison-Wesley professional Ruby series .
<br/><br/>Includes bibliographical references (p. 335-338) and index 
<br/><br/><label>ISBN: </label>9780321490452 (hbk. : alk. paper) 0321490452 (hbk. : alk. paper)  RM151.50 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Ruby on rails (Electronic resource)
<br/><br/><label>Subjects--Topical Terms: </label><br/>Software patterns