• 10 Population
• 7 Industries
• 5 Land use
• 4 Administrative and political divisions
• 3 Agriculture
• 2 E2
• 2 Economic conditions
• 2 Ethnology
• 2 Oil fields
• 2 Phytogeography
• 1 Agricultural resources
• 1 Chemical industries
• 1 Crops
• 1 Electric power distribution
• 1 Iron industry and trade
• 1 Languages
• 1 Machinery industry
• 1 Metal-work
• 1 Metallurgy
• 1 Mineral industries
• 1 Minorities
• 1 Petroleum refineries
• 1 Religion
• 1 Steel industry and trade

• 12 English

• 2 Soviet Union
• 1 Austria
• 1 Berlin (Germany)
• 1 Bhutan
• 1 Germany (West)
• 1 India
• 1 Iran
• 1 Japan
• 1 Korea (North)
• 1 Maps and atlases
• 1 Mexico
• 1 Mozambique
• 1 Persian Gulf Region
• 1 Saudi Arabia
• 1 Sikkim (India)
• 1 South Africa

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