Covey, Stephen R. <br/><br/>
Principle-Centred Leadership 
Stephen R. Covey 
 - London :  Simon & Schuster,  1991. 
 - 332 p. :  ill. ;  18 cm. 
<br/><br/> Includes Index. 
<br/><br/><label>ISBN: </label>0743468600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1.Success--Psychological aspects.
<br/><br/><label>Dewey Class. No.: </label>158.4