Porter, Michael E. <br/><br/>
On competition 

 - Massachusetts  Harvard Business School publishing  2008 
 - xxxi, 544 p.  
<br/><br/> Includes index  
<br/><br/><label>ISBN: </label>9781422126967  
<br/><br/><label>Dewey Class. No.: </label>382.1042 POR(Ref.)