00642pamaa2200217 4500 0000048476 20121206090000.0 101214 eng 9780131599659 (hard) 628.1 HAM TD345 HAM 2008 Hammer Water and wastewater technology Mark J. Hammer and Mark J. Hammer, Jr.. 6th ed. New Jersey: Peason / Prentice Hall, 2008. ix, 553p.: ill.; 26cm. BCEGI Water-supply engineering Sewage disposal Hammer Jr., Mark J., www.prenhall.com