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Creator
- Frey, Frederick W. (Frederick Ward), 1929- 4
- Turan, İlter 1
Topic
- Politics and government 4
- Economics 2
- Agriculture 1
- Bibliography 1
- Commerce 1
- Dams 1
- Demography 1
- Investments 1
- Irrigation 1
- Riparian areas 1
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Institution
- Oregon State University 4