Porter, Michael E. <br/><br/>
Competitive Strategy:  Techniques for Analyzing Industries and Competitors 
/ by Michael E. Porter 
 - New York:  The Free Press,  1980. 
 - xx, 396p. 
<br/><br/><label>ISBN: </label>0029253608 
<br/><br/><label>Dewey Class. No.: </label>658   / POR/C