Sinek, Simon. <br/><br/>
Start with why :  how great leaders inspire everyone to take action / 
Simon Sinek. 
 -  Portfolio Penguin,  2011. 
 - x, 248 p. ;  20 cm. 
<br/><br/><label>ISBN: </label>9780241958223 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Leadership.<br/>Leadership--Psychological aspects.<br/>Business communication.
<br/><br/><label>Dewey Class. No.: </label>658.4