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Donor
- Naff, Thomas 31
Topic
- Agriculture 17
- Irrigation 12
- Hydrology 9
- Watersheds 9
- Technology 8
- Water quality 8
- Groundwater 7
- Deserts 5
- Climate 4
- Demography 4
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Language
- English 31
Publisher
- Pergamon Press (Oxford, England) 31
Repository
- Oregon State University. Libraries 31