Subject
Reclamation of land
10
Irrigation
3
Water resources development
3
Hydroelectric power plants
2
Irrigation engineering
2
Reclamation of land History
2
Appropriations and expenditures
1
Coal mines and mining Environmental aspects
1
Crops and water
1
Dams
1
Environmental impact analysis
1
Irrigation Environmental aspects History
1
Irrigation History
1
Natural resources
1
Oil-shale industry Environmental aspects
1
Public works Evaluation
1
Reclamation of land Government policy
1
Reservoirs
1
Soils, Salts in
1
Strip mining Environmental aspects
1
Sustainable agriculture History
1
Water resources development History
1
Water-supply Economic aspects History
1
Water-supply Government policy
1