MICHAEL E. PORTER <br/><br/>
COMPETITIVE STRATEGY 

 -  THE FREE PRESS  1980 
 -  精 
<br/><br/><label>ISBN: </label>0-02-925360-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>553.1 POR