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Topic
- Laylin, John G. (John Gallup), 1902- 18
- Water-supply 17
- Politics and government 13
- Amini, Ali 4
- Tipton, R. J. (Royce J.), 1893- 1
Region
- Afghanistan 18
- Iran 18
Water Basin
- Helmand Rōd >> Afghanistan 18
Rights
- In Copyright 18