Gamma, Erich ...[et al.] <br/><br/>
Design patterns  elements of reusable object-oriented software 

 - New Delhi  Pearson  1995-R2010 
 - xv,395p.  PB  20cm. 
<br/><br/> includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788131700075 
<br/><br/><label>Dewey Class. No.: </label>005.12  / DES