• Signs, Signs: The Economic and Environmental Benefits of Community Sign Control (1992)
• Wild in the City: Naturescapes for Urban Wildlife (19??)
• Urban Ecology (19??)
• Aquaculture: Farming the Waters (19??)
• Drip Irrigation & Fertilization Management of Vegetable Crops (19??)
• Conservation Tillage (19??)
• The Bio-Diversity Story (19??)
• Biology Concepts through Discovery: Ecology (1991)
• Biology Concepts through Discovery: Pollution (1991)
• Global Problems and Issues (1991)
• Love the Earth and Be Healed (1995)
• How Dare They Call It Dirt? (1993)
• Reading Rainbow, 1993-'94: The Salamander Room (1993)
• Reading Rainbow, 1993-'94: And Still the Turtle Watched (1993)
• Space Station L-4 (1977)
• The Bharvad Predicament (1987)
• Land Application: Water Reuse in Agriculture (19??)
• Fire in the Forest (1994)
• Where Have All the Animals Gone? Endangered Species (1994)
• More Is Better: The Bio-Diversity Story (1995)
• The Rotten Truth (1995)
• You Can't Grow Home Again (1995)
• Get Busy: How Kids Can Save the Planet (1995)
• Down the Drain (1995)
• Black Triangle: Eastern Europe (1992)

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