• 18 Videos, Slides, Films

• 18 Technical education
• 13 Agronomy
• 8 Agricultural implements
• 8 Agricultural machinery
• 8 Agriculture
• 8 Farm equipment
• 8 Land use
• 8 Natural resources
• 8 Water use
• 8 Water-supply
• 6 Biodiversity
• 4 Biotic communities
• 4 Ecological regions
• 4 Pollution
• 3 Agroforestry
• 3 Air
• 3 Climatic changes
• 3 Ecology
• 3 Endangered ecosystems
• 3 Endangered species
• 3 Forestry schools and education
• 3 Forests and forestry
• 3 Global warming

• 18 Films Media Group
• 7 PBS (Firm)
• 4 Eyes of the World Films, Inc. (Firm)
• 3 Green Planet Films (Firm)
• 1 ARTE France (Firm)
• 1 BayView Entertainment LLC. (Firm)
• 1 Espresso TV (Firm)
• 1 Panoptic Productions (Firm)

• 16 English
• 1 Indonesian
• 1 Unknown

• 1 Asia

• 18 Internet videos
• 16 Video recordings for the hearing impaired

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