Humble, John W. <br/><br/>
Improving Business Results 
/ by John W. Humble 
 - England:  McGraw - Hill Publishing Company Limited,  1967. 
 - 192p.; 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>338.01  / HUM/I