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United Nations Environment Programme ,  Korea Water Resources Corporation ,  [Guidelines for Sanitation Management in Asia and Africa] ,  Guidelines for Sanitation Management in Asia and Africa

United Nations Environment Programme ,  [Rain and Storm Water Harvesting for Additional Water Supply in Rural Areas] ,  Rain and Storm Water Harvesting for Additional Water Supply in Rural Areas

United Nations Environment Programme ,  World Health Organization ,  [Hand Pumps for use in Drinking Water Supplies in Developing Countries - Technical Paper No. 10] ,  Hand Pumps for use in Drinking Water Supplies in Developing Countries - Technical Paper No. 10

United Nations Development Programme ,  United Nations Environment Programme ,  United Nations Department of Technical Cooperation Development ,  [Transnational Project on the Major Regional Aquifer in North-East Africa: Proceedings of project Workshop] ,  Transnational Project on the Major Regional Aquifer in North-East Africa: Proceedings of project Workshop