By Porten, Miehael <br/><br/>
Competitive advantage: creating and sustaning superior performance 

 - 1st 
 - London  Free Press  2004 
 - xxiv; 557p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management
<br/><br/><label>Dewey Class. No.: </label>658  / POR