Gamma, Erich <br/><br/>
Design patterns elements of reusable object-oriented software 

 -  New Delhi  Pearson Education  1995 
 - xv, 395p  
<br/><br/> Reprint year 2009, includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788131700075 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer<br/>Design patterns  Object-oriented software<br/>Object-oriented software design