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

 - 1 
 - New York  Simon & Schuster  1991 
 - 334 
<br/><br/><label>ISBN: </label>0671792806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Leadership
<br/><br/><label>Dewey Class. No.: </label>658.4092 COVS