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

 - London  Pocket Books  1990 
 - 332 
<br/><br/><label>ISBN: </label>0-7434-6860-0 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>658.4