Haswell, Charles K. Civil engineering contracts : practice and procedure / Charles K. Haswell, Douglas S. de Silva. - 2nd ed. - London: Butterworth, 1989. - xiii, 234 p. : ill. ; 22 cm. Previous ed.: 1982 ISBN: 0408032014 Subjects--Topical Terms: Civil engineering--Specifications--England Dewey Class. No.: 344.20378624