00482pamaa2200169 4500 0000021585 20101214090000.0 0132056267 (hard) 628.1 HAM TD345 HAM 1996 Hammer Water and wastewater technology Mark J. Hammer and Mark J. Hammer, Jr.. 3rd ed. New Jersey: Prentice Hall, 1996. vi, 519p.: ill.; 25cm. Water-supply engineering Sewage disposal