Porter, Michael E. <br/><br/>
Competitive advantage : creating and sustaining superior performance / 
Michael E. Porter 
 - New York  Free Press  1985 
 - 557 p. 
<br/><br/><label>ISBN: </label>9780743260879 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial management.<br/>Competition. ﾠ
<br/><br/><label>Dewey Class. No.: </label>658 POR-M