• 1 Limnology Library
• 1 Steenbock Library
• 1 Wisconsin Historical Society Library

• 1 Kits

• 12 DVDs
• 3 VHS Videocassettes

• 9 Pollution
• 6 Water-supply
• 4 Environmental aspects
• 3 Water resources development
• 2 Dams
• 2 Environmental protection
• 2 Lake ecology
• 2 Lake restoration
• 2 Water quality
• 2 Water use
• 1 Agricultural pollution
• 1 Algae
• 1 Aquatic ecology
• 1 Canals
• 1 Cities and towns
• 1 Cladophora
• 1 Community Participation
• 1 Conservation
• 1 Conservation of Natural Resources
• 1 Conservation of natural resources
• 1 Control
• 1 Ecology
• 1 Environmental conditions
• 1 Environmental health

• 4 Landmark Media, Inc
• 4 Nederlands Omroepproductie Bedrijf
• 4 Swanson, Peter, 1956-
• 4 Swynk (Firm)
• 2 Versluys, Marion
• 1 Andrews, Elaine, 1954-
• 1 Buren, Saskia
• 1 Burks, Frank
• 1 Clean Wisconsin (Organization)
• 1 Connecticut Public Television
• 1 Dale, Terje
• 1 Dickinson, Leif
• 1 Duetch Tatlock, Katherine
• 1 Eggermont, Jaap
• 1 Fednav Limited
• 1 Field, Bob
• 1 Fresen, Dolf
• 1 Gersen, Peter
• 1 Hedrick Smith Productions
• 1 Joosten, Bernhard
• 1 Lickley, David
• 1 Loew, Patty
• 1 Loon, Joost van
• 1 Low, Stephen
• 1 Luciani, David

• 16 English
• 1 French

• 3 Great Lakes (North America)
• 3 Wisconsin
• 1 Atlantic Ocean
• 1 California
• 1 Chesapeake Bay
• 1 Chesapeake Bay (Md. and Va.)
• 1 Dane County
• 1 Grands Lacs (Amérique du Nord)
• 1 Great Lakes
• 1 Great Lakes Region (North America)
• 1 Maryland
• 1 Michigan, Lake
• 1 Minnesota
• 1 Pacific Ocean
• 1 Puget Sound
• 1 Puget Sound (Wash.)
• 1 Switzerland
• 1 United States
• 1 Virginia
• 1 Washington
• 1 Washington (State)

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