00938nam0-22003251i-450-99000397558040332120100414125234.0000397558FED01000397558(Aleph)000397558FED0100039755820031027d1975----km-y0itay50------baengy-------001yyCommunity wastewater collection and disposalD. A. Okum , G. PonghisGenevaWorld Health Organization1975287 p.25 cmBibl. Ing. SanitariaTRATTAMENTO DELLE ACQUE DI RIFIUTOOkum,D.A.383464Ponghis,G.ITUNINARICAUNIMARCBK99000397558040332115 N/2-43DINIDIG 15 G 141364DMIGIDINIDDMIGICommunity wastewater collection and disposal473135UNINA