TY - BOOK AU - Gray,N.F. TI - Water technology: an introduction for environmental scientists and engineers SN - 0750666331 (pbk.) PY - 2005/// CY - Oxford PB - Elsevier Butterworth-Heinemann KW - Water supply KW - Water-supply engineering KW - Aquatic biology N1 - Previous ed.: London: Arnold, 1999; Includes bibliographical references and index ER -