Covey, Stephen R. <br/><br/>
Principle centered leadership 

 - New York  Simon and schuster  1992 
 - 334p.  24*15 cm 
<br/><br/><label>ISBN: </label>671711350 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Leadership.<br/> Success in business <br/>Success -- Psychological aspects 
<br/><br/><label>Dewey Class. No.: </label>158.4  / COV