Porter, Michael E. <br/><br/>
Competitive strategy: Techniques for analyzing industries and competitors 

 - New York  Free Press  1980 
 - xxviii,396p. 
<br/><br/><label>ISBN: </label> RS 250.00 
<br/><br/><label>Source: </label> RS 250.00 
<br/><br/><label>Dewey Class. No.: </label>658 POR