Limit your search
Donor
- Laylin, John G. (John Gallup), 1902- 5
Topic
- Dams 5
- Canals 4
- Irrigation 3
- Water-supply 3
- Agriculture 1
- Building 1
- Politics and government 1
Work Type
- documents 5
- clippings (information artifacts) 1
Region
- Afghanistan 5
- Iran 5
- United States 2