SUBJECT
Economic aspects
Agriculture
16
Food supply
5
Agriculture and state
3
Food industry and trade
2
Produce trade
2
Addresses, essays, lectures
1
Agricultural development projects
1
Children
1
Economic conditions
1
Economic policy
1
Economic sanctions
1
Environmental aspects
1
Food
1
Food prices
1
Forecasting
1
Irrigation
1
Irrigation farming
1
Land
1
Nutrition
1
Peasantry
1
Persian Gulf War, 1991
1
Planning
1
Political aspects
1
Rural poor
1
Soils
1
Study and teaching
1
Water, Underground
1