Covey.  <br/><br/>
Principle centred leadership 

 - 1st edition. 
 - New delhi :   Printice Hall Of India   2008. 
 - 492.  
<br/><br/><label>ISBN: </label>978-0-7434-6860-2  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering,
<br/><br/><label>Dewey Class. No.: </label>420.84  / COV