TY - BOOK T1 - Appropriate methods of treating water and wastewater in developing countries A1 - Reid, George Willard 1917- LA - English PP - Oklahoma PB - Bureau of Water and Environmental Resources Research, University of Oklahoma YR - 1978 UL - https://tuklas.up.edu.ph/Record/UP-1685523046124931750 OP - 765 NO - Includes index. CN - TD 430 A66 1978 SN - 0250404133 KW - Sewage : Purification. KW - Water : Purification. ER -