• 13 Videos, Slides, Films

• 13 Thermodynamics
• 11 Heat-engines
• 3 Dynamics
• 3 Energy consumption
• 3 Energy development
• 3 Environmental aspects
• 3 Management
• 3 Mechanics
• 3 Natural resources
• 3 Power resources
• 3 Study and teaching
• 2 Atmosphere
• 2 Chemical elements
• 2 Chemical reactions
• 2 Chemistry, Physical and theoretical
• 2 Geology, Structural
• 2 Inorganic compounds
• 2 Mantle
• 2 Organic compounds
• 2 Physics
• 2 Weather
• 1 Air
• 1 Anatomy

• 13 Films Media Group
• 13 Films for the Humanities & Sciences (Firm)
• 2 Allegro Productions (Firm)
• 2 Goldhil Video (Firm)
• 2 National Geographic Television & Film
• 2 Standard Deviants (Performing group)
• 2 Video Education Australasia
• 1 BBC Worldwide Ltd
• 1 Cambridge Educational (Firm)
• 1 Canadian Broadcasting Corporation
• 1 Ethical Markets Media
• 1 Open University

• 13 English

• 2 Earth (Planet)

• 13 Educational films
• 11 Videorecording
• 5 Video recordings for the hearing impaired
• 2 Video recording

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