Porter, Michael E <br/><br/>
Competitive strategy :  techniquwes for analyzing industries and competitors / 
Michael E. Porter. 
 - New York :  The Free Press,  c1980. 
 - xx, 396 p. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0029253608 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Competition.<br/>Industrial management.
<br/><br/><label>LC Class. No.: </label>HD41  / .P676 1980