Ashworth, A. Willis's practice and procedure for the quantity surveyor / Allan Ashworth, Keith Hogg [and] Catherine Higgs. - 13th ed. - Oxford : John Wiley & Sons, c2013. - xi, 426 p. : ill. ; 25 cm. Includes index. Includes bibliographical references. ISBN: 9781405145787 (pbk.) Subjects--Topical Terms: Building--Estimates--Great Britain.