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Donor
- Naff, Thomas 4
Topic
- Hydrology 4
- Irrigation 3
- Economics 2
- El Qauroun Dam (Lebanon) 2
- Finance 2
- Groundwater 2
- Labor 2
- Seismology 2
- Watersheds 2
- Agriculture 1
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Rights
- In Copyright 4
Publisher
- United States. Bureau of Reclamation 4