Design patterns  elements of reusable object-oriented software 
Erich Gamma ...[et.al.]. 
 - Delhi  Pearson Education  1995 
 - xv, 395p.; 24cm..-(Addison-Wesley professional computing series). 
 - (Addison-Wesley professional computing series). .
<br/><br/><label>ISBN: </label>8178081350 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patern perceipton; Software engineering.
<br/><br/><label>Dewey Class. No.: </label>005.12  / D37D