TY - BOOK AU - Gray, N. F TI - Water technology : an introduction for environmental scientists and engineers SN - 9780750666336 SN - 200529603 U1 - 628.1 GRA PY - 2005/// CY - Oxford ; Burlington, MA PB - Elsevier / Butterworth-Heinemann KW - Aquatic biology KW - Water supply KW - Water-supply engineering N1 - Previous ed.: London: Arnold, 1999. Includes bibliographical references and index ER -