Covey, Stephen R. <br/><br/>
Principle-centered leadership / 
Stephen R. Covey. 
 - New York :  Summit Books,  c1991. 
 - 334 p. :  ill. ;  24 cm. 
<br/><br/>A Principles and Centered Approach (Page-13), Personal and Interpersonal Effectiveness (Page-29), Managerial and Organizational Development (Page-153). 
<br/><br/><label>ISBN: </label>0671771135 
<br/><br/><label>LCCN: </label>91028078 
<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