Covey, Stephen R. <br/><br/>
Principle-centred leadership / 
Stephen R. Covey 
 - London :  Simon & Schuster,  1991 
 - 332 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>068485841X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Success--Psychological aspects.<br/>Success in business.<br/>Leadership.
<br/><br/><label>Dewey Class. No.: </label>158.4  / C873P