Koontz, Harold <br/><br/>
Essentials of management 
Harold Koontz, Heinz Weihrich 
 - 5. ed. 
 - New York  McGraw-Hill  1990 
 - XXV, 530 p.  24 cm. 
<br/><br/><label>ISBN: </label>007035605X 
<br/><br/><label>Dewey Class. No.: </label>658.4