Pineo,C.S.
Community water supply and excreta disposal situation in the developing countries By C.S. Pineo and D.V. Subrahmanyam - Geneva World Health Organization 1975 - 41p.
92 4 170015 7
Sewage disposal -- Developing countries
Water- supply -- Developing countries
V43 W893
Community water supply and excreta disposal situation in the developing countries By C.S. Pineo and D.V. Subrahmanyam - Geneva World Health Organization 1975 - 41p.
92 4 170015 7
Sewage disposal -- Developing countries
Water- supply -- Developing countries
V43 W893