SUBJECT
Agriculture
6
Agriculture and state
6
Economic aspects
5
Electronic data processing
2
Public administration
2
Administrative agencies
1
Description and travel
1
Economic assistance
1
Economic policy
1
Educational statistics
1
Electric utilities
1
Energy policy
1
Environment policy research
1
Eocnomic aspects
1
Industries
1
Management
1
Manufactures
1
Petroleum industry and trade
1
Statistics
1