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Topic
- Laylin, John G. (John Gallup), 1902- 17
- Water-supply 17
- Politics and government 12
- Amini, Ali 3
- Tipton, R. J. (Royce J.), 1893- 1
Work Type
- documents 17
Region
- Afghanistan 17
- Iran 17
Water Basin
- Helmand Rōd >> Afghanistan 17
Type
- Text 17
Institution
- Oregon State University 17