Ashworth, Allan. <br/><br/>
Pre-Contract studies :  Development economics tendering and estimating / 

 - 3rd ed. 
 - United Kingdom,  Blackwell,  c2008. 
 - xii, 364 p. ;  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>9781405177009 
<br/><br/><label>Dewey Class. No.: </label>690.0681