BROWN, J.L. OWLER, L.W.J. <br/><br/>
WHELDON`S COSTING SIMPLIFIED 

 - 5th Ed. 
 - London  MacDonald and Evans Ltd., London   1978 
<br/><br/><label>ISBN: </label>0 7121 2333 4 
<br/><br/><label>Dewey Class. No.: </label>657.42  / BRO/W