• 6 Agriculture
• 4 Economic aspects
• 3 Agricultural assistance, American
• 2 Technical assistance
• 1 Agricultural assistance, America
• 1 Cities and towns
• 1 Ecology
• 1 Regional planning
• 1 Rural conditions
• 1 Rural development zx Developing countries
• 1 Social conditions
• 1 Sociology, Urban
• 1 Urban ecology (Sociology)
• 1 Urbanization

• 3 Agricultural Development Council
• 2 Council on Economic and Cultural Affairs
• 1 Food and Agriculture Organization of the United Nations
• 1 United Nations Centre for Regional Development

• 8 English

• 1 Asia

Limit year range