• 3 Videos, Slides, Films

• 2 Art
• 2 Art and architecture
• 2 Art, Ancient
• 2 Art, Asian
• 2 Art, Classical
• 2 Art, Medieval
• 2 Art, Modern
• 2 Art, Polynesian
• 2 Business
• 2 Economics
• 2 History
• 2 Organizational behavior
• 1 Architecture, Modern
• 1 Conservation of natural resources
• 1 Energy consumption
• 1 Energy development
• 1 Environmental aspects
• 1 Environmental protection
• 1 Government policy
• 1 Natural resources
• 1 Neoclassicism (Art)
• 1 Power resources
• 1 Realism
• 1 Romanticism

• 3 Films Media Group
• 3 Infobase
• 2 BBC (Firm)
• 1 Films for the Humanities & Sciences (Firm)
• 1 Public Broadcasting Service (U.S.)

• 3 English

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