Porter, Michael <br/><br/>
Competition and strategy / 
Michael Porter . 
 - USA :  Harvard Business Review,  c1991. 
 - iii, 89 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9780875842721 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Competitive strategy
<br/><br/><label>Dewey Class. No.: </label>658.4012  / POR