• 6 Videos, Slides, Films

• 6 Technology
• 4 Social aspects
• 3 Power (Mechanics)
• 2 Forecasting
• 2 Science
• 1 Air traffic control
• 1 Architecture
• 1 Automobiles
• 1 Environmental aspects
• 1 Environmental protection
• 1 Environmental sciences
• 1 Human geography
• 1 Manufacturing industries
• 1 Military art and science
• 1 Transportation
• 1 Urban geography

• 6 Films for the Humanities & Sciences (Firm)

• 6 English

• 6 Educational films
• 6 Internet videos
• 6 Videorecording

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