• 6 Map Library (Robinson)

• 15 Industries
• 12 Mines and mineral resources
• 6 Ethnology
• 6 Phytogeography
• 5 Land use
• 4 Administrative and political divisions
• 3 Economic conditions
• 3 Indians of Central America
• 3 Migration, Internal
• 1 Black people
• 1 Climate
• 1 Crops
• 1 Fishing
• 1 Land use, Rural
• 1 Languages
• 1 Mapas Mexico
• 1 Maps
• 1 Mineral industries
• 1 Minorities
• 1 Power resources
• 1 Religion
• 1 Tribes

• 18 English

• 3 Guatemala
• 2 Homelands (South Africa)
• 2 Mexico
• 2 South Africa
• 1 Algeria
• 1 Bangladesh
• 1 Bhutan
• 1 Brunei
• 1 China
• 1 Congo (Democratic Republic)
• 1 India
• 1 Iran
• 1 Jamaica
• 1 Malaysia
• 1 Maps and atlases
• 1 Mozambique
• 1 Namibia
• 1 Pakistan
• 1 Sikkim (India)
• 1 Taiwan

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