• 12 Videos, Slides, Films

• 9 Study and teaching
• 8 Chemistry
• 6 Environmental sciences
• 6 Experiments
• 6 Research
• 5 Geology
• 5 Methodology
• 5 Physical geography
• 5 Science
• 4 Anthropology
• 4 Crime
• 4 Mathematics
• 4 Politics and government
• 4 Psychology
• 4 Social control
• 4 Sociology
• 4 Vocational guidance
• 3 Physical sciences
• 2 Applied mathematics
• 2 Engineering
• 2 Life sciences
• 2 Mechanics
• 2 Technology

• 12 Films Media Group
• 9 Films for the Humanities & Sciences (Firm)
• 4 Uniview Worldwide
• 3 Infobase
• 2 Cambridge Educational (Firm)
• 1 A&E Networks (Firm)
• 1 German United Distributors
• 1 Ideas Roadshow (Firm)
• 1 Joy of Giving Something, Inc
• 1 La Compagnie des Taxi-Brousse
• 1 Liacos Educational Media (Firm)

• 12 English

• 4 United States

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