Simon Sinek <br/><br/>
Start With Why : How Great Leaders Inspire Everyone to Take Action 

 - London  Penguin Books  2011 
 - 256 p. ; 20 cm 
<br/><br/><label>ISBN: </label>9780241958223 
<br/><br/><label>Dewey Class. No.: </label>658.40 SIN