Twort, A. C. Water supply / A.C. Twort, F.M. Law, F.W. Crowley. - 4th ed. - London ; Baltimore, Md., USA : E. Arnold, 1994. - 511p., ill. ; 23 cm. P.B ISBN: 0340575875 (pbk.) Subjects--Topical Terms: Water-supply engineering.MCE Dewey Class. No.: 628.1 TWO