• 1 Wisconsin Historical Society Library

• 90 Videos, Slides, Films

• 11 History
• 5 Environmental aspects
• 4 Pollution
• 4 Women
• 4 World War, 1939-1945
• 3 Description and travel
• 3 Economic conditions
• 3 Lemurs
• 3 Rain forest ecology
• 3 Social aspects
• 3 Social life and customs
• 3 Zoology
• 2 Animals
• 2 Antiquities
• 2 Civilization
• 2 Competition (Biology)
• 2 Conspiracies
• 2 Ecology
• 2 Economic aspects
• 2 Hazardous wastes
• 2 Marketing
• 2 Nature photography
• 2 Physicists
• 2 Physics
• 2 Politics and government

• 14 PBS Home Video
• 12 WGBH (Television station : Boston, Mass.)
• 7 WGBH Video (Firm)
• 6 National Geographic Society (U.S.)
• 6 WNET (Television station : New York, N.Y.)
• 5 British Broadcasting Corporation. Television Service
• 5 Guyer, Howard H
• 5 INTELECOM Intelligent Telecommunications (Firm)
• 5 WGBH (Television station : Boston, Mass.). Science Unit
• 4 British Broadcasting Corporation
• 4 Channel Four (Great Britain)
• 4 National Film Board of Canada
• 4 National Geographic Video (Firm)
• 4 Osgood, Charles
• 3 Partridge Films
• 3 Public Broadcasting Service (U.S.)
• 2 Apsell, Paula S
• 2 Bullfrog Films
• 2 Columbia TriStar Home Video (Firm)
• 2 Fine Line Features
• 2 First Run/Icarus Films
• 2 Hackman, Gene
• 2 Hurt, William
• 2 Independent Television Service
• 2 Learning Seed Company

• 1 Spanish

• 9 United States
• 4 Madagascar
• 3 Africa
• 3 Canada
• 2 China
• 2 Great Britain
• 2 Mississippi
• 2 Outer space
• 1 Afghanistan
• 1 Africa, East
• 1 Alexandria
• 1 Alexandria (Egypt)
• 1 Amazon River
• 1 Amazon River Region
• 1 Amazon River Valley
• 1 Arctic regions
• 1 Argentina
• 1 Asia
• 1 Bali Island (Indonesia)
• 1 Belize
• 1 Brazil
• 1 British Columbia
• 1 California
• 1 Central America
• 1 Cuba

• 19 Feature films
• 15 Drama
• 8 Documentary films
• 7 Documentary television programs
• 7 Video recordings
• 4 Biography
• 3 Film adaptations
• 3 Science television programs
• 2 Animal films
• 2 Biographical films
• 2 Children's films
• 2 Comedy films
• 2 Musical films
• 1 Action and adventure films
• 1 Children's television programs
• 1 Detective and mystery films
• 1 Fantasy films
• 1 Historical films
• 1 Juvenile films
• 1 Nature sounds
• 1 Personal narratives, American
• 1 Personal narratives, Jewish
• 1 Pictorial works
• 1 Road films

Limit year range