Topics
Economic aspects
9
Economic conditions
Hydroelectric power plants
9
Social aspects
5
Dams
4
Social conditions
4
Economic forecasting
3
Forecasting
3
Population forecasting
3
Business enterprises
2
Economic history
2
Economic surveys
2
Mathematical models
2
Regional economics
2
Appropriations and expenditures
1
Bus travel
1
Estimates
1
Finance
1
Planning
1
Transportation
1