• 10 Map Library (Robinson)
• 1 Steenbock Library

• 20 Land use
• 17 Economic conditions
• 12 Industries
• 11 Mines and mineral resources
• 10 Phytogeography
• 7 Ethnology
• 4 Agriculture
• 3 Oil fields
• 3 Tribes
• 2 E2
• 2 Electric power distribution
• 2 Machinery industry
• 2 Metal-work
• 2 Metallurgy
• 2 Petroleum refineries
• 1 Chemical industries
• 1 Chemical industry
• 1 Climate
• 1 Ethnic groups
• 1 F7
• 1 Fuel
• 1 Mapas Mexico
• 1 Power resources

• 31 English

• 3 Mexico
• 3 Persian Gulf Region
• 3 Saudi Arabia
• 3 Vietnam
• 2 Bulgaria
• 2 Chile
• 2 France
• 2 Soviet Union
• 1 Albania
• 1 Brazil
• 1 China
• 1 Denmark
• 1 Greece
• 1 Iceland
• 1 Japan
• 1 Maps and atlases
• 1 Nepal
• 1 Netherlands
• 1 Philippines
• 1 Spain
• 1 Taiwan
• 1 Thailand
• 1 Uruguay

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