Michael, E. <br/><br/>
Michael E. Porter on competition and strategy 

 - Boston  Harvard Business School Press  1991 
 - 
<br/><br/><label>ISBN: </label>0875842720 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management
<br/><br/><label>LC Class. No.: </label>HF 1414 P677