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Donor
- Naff, Thomas 15
Topic
- Hydrology 15
- Irrigation 7
- Groundwater 5
- Water quality 5
- Agriculture 4
- Demography 3
- Economics 3
- Politics and government 3
- Aquifers 2
- Aswan High Dam (Egypt) 2
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Language
- Arabic 15
Collection
- The Middle East Water Collection 15