Droste, Ronald L. Theory and practice of water and wastewater treatment / Ronald L. Droste. - New York : J. Wiley, 1997. - xiv, 800 p. : ill. ; 27 cm. ISBN: 0471124443 (cloth : alk. paper) Subjects--Topical Terms: Water--Purification.Sewage--Purification.MCE Dewey Class. No.: 628.162 / DRO