TY - BOOK AU - Shammas, Nazih K. AU - Wang, Lawrence K. TI - Fair, Geyer, and Okun's water and wastewater engineering: water supply and waster water removal SN - 9780470411926 U1 - 628.1 22 CY - Danvers, MA PB - John Wiley ,2011 KW - Water- supply KW - Water KW - Purification KW - Sewage N1 - Includes bibliographical references and index ER -