• 4 College Library
• 2 Steenbock Library

• 24 Videos, Slides, Films

• 20 DVDs
• 2 VHS Videocassettes

• 13 Nature
• 11 Effect of human beings on
• 10 Environmental degradation
• 8 Environmental health
• 7 Environmental policy
• 5 Documentary television programs
• 5 Pollution
• 5 Stream ecology
• 5 Sustainable development
• 5 Video recordings for the hearing impaired
• 4 Agricultural ecology
• 4 Agriculture
• 4 Environmental aspects
• 4 Extinction (Biology)
• 4 Urban ecology (Sociology)
• 4 Wildlife conservation
• 3 Endangered species
• 3 Grasslands
• 3 Marine animals
• 3 Terrorism
• 2 Cities and towns
• 2 Communicable diseases
• 2 Economic aspects
• 2 Effects of humans on
• 2 Environmental conditions

• 24 South Carolina Educational Television Network
• 24 Weiner, Hal
• 24 Weiner, Marilyn
• 15 Damon, Matt
• 11 Boni, Dennis
• 11 Ferrucci, Frank
• 9 McGillis, Kelly, 1957-
• 3 McNamee, Jim
• 3 Mills, Bill, 1952-
• 3 PBS Home Video
• 2 Mangum, Christopher, 1968-
• 2 Quattrucci, Ralph
• 1 Curtis-Johnson, Bob
• 1 Herbert, Judith E
• 1 Mills, Bill
• 1 National Institute of Environmental Health Sciences
• 1 National Science Foundation (U.S.)
• 1 Public Broadcasting Service (U.S.)
• 1 Quesada, Virginia
• 1 Zakin, Robert

• 24 English

• 2 Amazon River
• 2 Amazon River Valley
• 2 China
• 2 France
• 2 Jordan River
• 2 Jordan River Valley
• 2 Mekong River
• 2 Mekong River Valley
• 2 Mississippi River
• 2 Mississippi River Valley
• 2 United States
• 2 Zimbabwe
• 1 Aral Sea (Uzbekistan and Kazakhstan)
• 1 Arctic regions
• 1 Istanbul (Turkey)
• 1 Mexico City (Mexico)
• 1 New York (N.Y.)
• 1 Palm Springs (Calif.)
• 1 Shanghai (China)
• 1 Tijuana (Baja California, Mexico)

Limit year range