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Creator
- Kolars, John F. 36
- Mitchell, William A. 2
- Abu Bakr, Yahya 1
- Ayeb, Habib 1
- Barghouti, Shawki M. 1
- Beschorner, Natasha 1
- Hayward, J. A. (John Aldred) 1
- Keiswetter, Allen 1
- Nystuen, John D., 1931- 1
- Picard, Elizabeth 1
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Topic
- Politics and government 12
- Hydrology 11
- Irrigation 11
- Agriculture 9
- Technology 8
- Water-power 8
- Climate 6
- Groundwater 6
- Watersheds 6
- Dams 5
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