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Donor
- Naff, Thomas 2
Topic
- Hydrogeology 2
- Hydrology 2
- Water-supply 2
- Aquifers 1
- Groundwater 1
- Nasser, Lake (Egypt and Sudan) 1
- Reservoirs 1
- Water consumption 1
- Watersheds 1
Publisher
- United Nations Development Programme 2
- World Bank 1