By Porten, Miehael <br/><br/>
Competitive strategy: techniiques for analyzing industries and competitors 

 - London  Free Press  2004 
 - xxi; 396p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stratedic management
<br/><br/><label>Dewey Class. No.: </label>658.4012  / POR