• 11 Sociology
• 10 Collective behavior
• 10 Social movements
• 9 War
• 7 History
• 5 Geopolitics
• 5 Human geography
• 5 Political aspects
• 5 Political geography
• 4 Population policy
• 4 Rural-urban migration
• 4 Social ecology
• 4 Urbanization
• 3 Equality
• 3 Ethnicity
• 3 Racism
• 2 Comparative government
• 2 Cultural geography
• 2 Globalization
• 2 Human ecology
• 1 Cities and towns
• 1 Civilization

• 16 Films Media Group
• 11 Infobase
• 5 Films for the Humanities & Sciences (Firm)
• 5 PBS (Firm)
• 2 Classroom Video (Firm)
• 2 WPA Film Library (Firm)
• 1 108 Media Corporation (Firm)
• 1 3DD Entertainment (Firm)
• 1 Lightworks Enterprises, Inc
• 1 Nick Jordan (Firm)
• 1 RSI Radiotelevisione svizzera (Firm)
• 1 Ruiz, Wilson R
• 1 Zarafa Films

• 16 English

• 7 United States
• 2 Asia
• 2 Middle East
• 1 Africa
• 1 Africa, Sub-Saharan
• 1 China
• 1 India
• 1 South Asia

Limit year range