Porter, Michael E.,  1947- <br/><br/>
Competitive advantage :  creating and sustaining superior performance / 
Michael E. Porter. 
 - New York :  Free Press,  c1985. 
 - xviii, 557 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0029250900 (hbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Competition<br/>Industrial management
<br/><br/><label>Dewey Class. No.: </label>658  / POC 1985