Drucker, Peter F. <br/><br/>
The effective executive:   the definitive guide to getting the right things done / 
Peter F. Drucker 
 - New York:  HarperCollins Publishers,   1967 
 - Pages 
<br/><br/><label>ISBN: </label>9780060833459 
<br/><br/><label>LC Class. No.: </label>HD38.D68 E1967