Covey, Stephen R. <br/><br/>
The 7 habits of highly effectiveness people : powerful lessons in personal change / 
Stephen R. Covey 
 - 25th anniversary ed. 
 - New York :  Simon & Schuster,  2013 
 - xxx, 391 p. :  ill.   21 cm. 
<br/><br/><label>ISBN: </label>9781451639612