Water quality and treatment : a handbook of community water supplies / American Water Works Associationedited by Frederick W. Pontius - 4th ed. - New York : McGraw-Hill, Inc., c1990. - xiv,1194 p. : ill., figs., tabs. ; 23 cm. ISBN: 0070015406 LCCN: Subjects--Topical Terms: WaterPurificationWater quality LC Class. No.: TD430 / .W365 1990