TY - BOOK ED - Estados Unidos. ED - Culp-Wesner Culp-Water Consultants TI - Management of small to medium sized municipal waste water treatment plants AV - TD745 E88 PY - 1979/// CY - Washington, D.C. PB - Environmental Protection Agency, Office of Water Program Operations KW - Plantas depuradoras de agua KW - Aguas residuales KW - Purificación N1 - Epa contract no. 68-01-4917 ER -