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

 - New York:  Free press,  1985 
 - xxi,557p.:  ill.;pbk.  20 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780743260879 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial management<br/>Competition
<br/><br/><label>Dewey Class. No.: </label>658.4 POR