• 7 Verona Shelving Facility
• 1 MERIT Library
• 1 Middleton Shelving Facility
• 1 Steenbock Library
• 1 Wisconsin's Water Library

• 95 Videos, Slides, Films

• 25 DVDs
• 2 VHS Videocassettes

• 58 Pollution
• 28 Water-supply
• 26 Environmental aspects
• 10 Health aspects
• 9 Citizen participation
• 9 Environmental conditions
• 9 Purification
• 8 Economic aspects
• 8 Environmental protection
• 8 Water resources development
• 7 Management
• 7 Social aspects
• 6 Drinking water
• 6 Government policy
• 6 History
• 6 Law and legislation
• 6 Water conservation
• 5 Contamination
• 5 Environmental degradation
• 5 Rivers
• 5 Water quality
• 4 Agricultural pollution
• 4 Agriculture
• 4 Conservation of natural resources

• 18 Bullfrog Films
• 6 Alexander Street Press
• 5 Cheney, Ian
• 5 Dale, Terje
• 5 Norsk rikskringkasting
• 5 Tvedt, Terje
• 4 McRobert, Trudy
• 4 Page, Wendy
• 4 Wicked Delicate Films
• 3 Alberini, Carolina
• 3 Big Picture Media Corporation
• 3 Docurama (Firm)
• 3 Downie, Gordon, 1964-2017
• 3 Ellis, Curt
• 3 Encyclopaedia Britannica, Inc.
• 3 Fabrini, Veronica
• 3 Independent Television Service
• 3 Laboratório Cisco (Group of filmmakers)
• 3 McLaughlin, Kristina
• 3 McMahon, Kevin, 1957 or 1958-
• 3 Mosaic Films
• 3 National Film Board of Canada
• 3 New Video Group
• 3 Primitive Entertainment Inc
• 3 Romero, Hidalgo

• 84 English
• 10 Spanish
• 7 Hindi
• 4 Portuguese
• 3 Tamil
• 2 Chinese
• 2 Russian
• 1 Arabic
• 1 Bengali
• 1 Hebrew
• 1 Mayan languages
• 1 Multiple languages
• 1 Nahuatl
• 1 South American Indian (Other)
• 1 Unknown

• 11 United States
• 7 India
• 6 Australia
• 4 Brazil
• 4 Mexico
• 4 Mexico, Gulf of
• 4 Tasmania
• 3 Alberta
• 3 Athabasca Tar Sands (Alta.)
• 3 Butler County
• 3 China
• 3 Colorado
• 3 Great Lakes (North America)
• 3 Hudson River (N.Y. and N.J.)
• 3 Iowa
• 3 New Jersey
• 3 West Virginia
• 2 Alberta, Northern
• 2 California
• 2 Chile
• 2 Ganges River (India and Bangladesh)
• 2 Garfield County
• 2 Kenya
• 2 Mars (Planet)
• 2 Minnesota

Limit year range