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

 - 3rd Ed. 
 - London,  Macdonald & Evans,  1962. 
 - x, 244p.:Ill.;figures & picture  Index  22cm. 
<br/><br/><label>ISBN: </label>0 7121 03283 7 
<br/><br/><label>Dewey Class. No.: </label>657.42  OWL