Shammas, Nazih K. Wang, Lawrence, K. Water supply and wastewater removal : fair, geyer, and okun's, water and wastewater engineering / - 3rd ed. - xxvii, 824 p. : ill. ; 26 cm. Includes index ISBN: 9780470411926 LC Class. No.: 24585-24586 Dewey Class. No.: 628.1 / SHA