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Donor
- Naff, Thomas 44
Topic
- Water-power 44
- Irrigation 22
- Hydrology 19
- Politics and government 19
- Water diversion 19
- Building 18
- United Nations 16
- Groundwater 14
- International regimes 12
- Armistices 8
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Type
- Text 44
Institution
- Oregon State University 44
Decade
- 1950-1959 44