Limit your search
Donor
- Laylin, John G. (John Gallup), 1902- 41
Topic
- Water-supply 41
- Politics and government 32
- Laylin, John G. (John Gallup), 1902- 17
- Irrigation 6
- Dams 3
- Treaties 3
- Amini, Ali 2
- Canals 2
- Agriculture 1
- Tipton, R. J. (Royce J.), 1893- 1
Region
- Afghanistan 37
- Iran 37
- United States 3
- Egypt 1
- France 1
- Germany 1
- Iraq 1
- Mexico >> North America 1
- Turkey 1
- United Kingdom 1
