Drury, Colin. <br/><br/>
Costing 

 - 3rd ed 
 - London  Chapman & Hall  c1994 
<br/><br/><label>ISBN: </label>0412587807 
<br/><br/><label>LCCN: </label>93-074895 
<br/><br/><label>Dewey Class. No.: </label>657.42