Porter, Michael E. <br/><br/>
Competitive advantage: creating and sustaining superior performance 

 - New York  The Free Press  1985 
 - xviii, 557 p. 
<br/><br/><label>ISBN: </label>29250900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial management
<br/><br/><label>Dewey Class. No.: </label>658  / POR