Freeman, Eric <br/><br/>
Head first design patterns 

 - Sebastopol  O’Reilly   c2004. 
 - 638 p 
<br/><br/><label>ISBN: </label>9780596007126,  0596007124    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer software --Development.   Java (Computer program language)  
<br/><br/><label>LC Class. No.: </label>QA 76 .76 .D47 H427/