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

 - xviii, 557p.  24cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0-02-925090-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial management.<br/>Competition.
<br/><br/><label>Dewey Class. No.: </label>658 P844 1985