Design patterns elements of reusable object oriented software 
Erich Gamma ... [et a]. 
 - Massachusetts  Addison Wesley Longman  2000 
 - xv, 395p., 24cm 
 - (Addison Wesley professional computing series). .
<br/><br/><label>ISBN: </label>981-235-875-7. 
<br/><br/><label>Dewey Class. No.: </label>005.12  / D37D