• 12 Map Library (Robinson)

• 26 Population
• 21 Industries
• 15 Land use
• 12 Agriculture
• 11 Administrative and political divisions
• 7 Ethnology
• 6 Phytogeography
• 4 Economic conditions
• 3 Oil fields
• 3 Tribes
• 2 E2
• 2 Electric power distribution
• 2 Fuel
• 2 Machinery industry
• 2 Metal-work
• 2 Metallurgy
• 2 Petroleum refineries
• 1 Agricultural resources
• 1 Black people
• 1 Chemical industries
• 1 Chemical industry
• 1 Crop zones
• 1 Crops
• 1 Ethnic groups

• 29 English

• 3 South Africa
• 3 Soviet Union
• 2 Homelands (South Africa)
• 2 Iran
• 2 Mexico
• 2 Persian Gulf Region
• 2 Saudi Arabia
• 1 Algeria
• 1 Austria
• 1 Berlin
• 1 Berlin (Germany)
• 1 Bhutan
• 1 Brunei
• 1 China
• 1 Germany
• 1 Germany (East)
• 1 Germany (West)
• 1 India
• 1 Jamaica
• 1 Japan
• 1 Korea (North)
• 1 Korea (South)
• 1 Malaysia
• 1 Maps and atlases
• 1 Mozambique

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