TY - BOOK AU - Olsen,Russ TI - Design patterns in Ruby SN - 9780321490452 (hbk) U1 - 005.117 22 PY - 2008/// CY - Upper Saddle River, NJ PB - Addison-Wesley KW - Ruby on rails (Electronic resource) KW - Software patterns N1 - Includes bibliographical references (p. 335-338) and index ER -