Limit your search
Donor
- Laylin, John G. (John Gallup), 1902- 9
Topic
- Dams 9
- Canals 7
- Irrigation 4
- Water-supply 3
- Agriculture 1
- Building 1
- Hari Rud 1
- Politics and government 1
Region
- Afghanistan 9
- Iran 8
- United States 2
- Russia 1
Collection
- The Middle East Water Collection 9