Drucker, Peter <br/><br/>
The essential Drucker 
Peter Drucker. 
 - New York  Harper Collins  2001 
 - 358p., 23cm. 
<br/><br/><label>ISBN: </label>0-06-621087-9. 
<br/><br/><label>Dewey Class. No.: </label>658.007  / D79F