Ashworth, Allan <br/><br/>
Willis's practice and procedure for the quantity surveyor / 
Allan Ashworth, Keith Hogg 
 - 11th ed. 
 - Oxford :  Blackwell Science Inc.,  2002 
 - x, 364 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0632053348 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Building--Estimates--Great Britain