TY - BOOK T1 - Economic issues in the design and analysis of a wastewater treatment project T2 - ERD technical note series A1 - Dole, David LA - English PP - Manila PB - Asian Development Bank YR - 2002 UL - https://tuklas.up.edu.ph/Record/UP-1685594773861326728 OP - 30 NO - Includes bibliographical references (page 20) CN - HC 412 A845 2002 no.4 KW - Sewage purification. KW - Water quality. ER -