Individual onsite wastewater systems: proceedings - National Conference for Individual Onsite Wastewater Systems 1976 Nov: Michigan); McClelland, Nina I; National Sanitation Foundation; United States Environmental Protection Agency Technology Transfer Program, Spon (Michigan: Ann Arbor Science, 1977)
Library has V.1 ist proceeding held on 1974, V.2 2nd proceeding held on 1975, V.3 3rt proceeding held on 1976
Keywords: Sewage disposal -- Congresses; Sewerage -- Congresses; Sewage -- Purification -- Congresses