OWLER, J. W. L. <br/><br/>
Wheldon's Costing Simplified. 

 - 5th Ed. 
 - Britain,  MacDonald and Evans,  1976. 
 - ix, 322p.: ill.;   Index  20cm 
<br/><br/><label>ISBN: </label>0 7121 2309 1 
<br/><br/><label>Dewey Class. No.: </label>657.42 OWL