TY - BOOK AU - Twort,A.C. AU - Law,Frank M. AU - Crowley,F.W. TI - Water supply SN - 0340575875 AV - TC345 .T93 1994 U1 - 628.1 19 PY - 1994/// CY - London PB - E. Arnold KW - Water-supply engineering N1 - Includes bibliographical reference and index ER -