• Evolution's End: The Clear Cut Facts (19??)
• Seasons in the Woodlands (1993)
• It Can't Happen Here: Improper Waste Handling, Treatment and Disposal (19??)
• Practical Approaches to Laboratory Waste Management (1992)
• The Harmony Puzzle (Environment and Economy) (198?)
• Solving the Harmony Puzzle (You're Part) (198?)
• A Place for Wildlife (19??)
• Endangered Earth: The Politics of Acid Rain (1988)
• Professor Iris: Earth Daze (1993)
• Wetlands: Lemons or Lemonade? (1993)
• The Murky Water Caper (1993)
• Recycling Yard Waste (1991)
• Earthkeeping: A Call to Action (1993)
• Changing World: Trees of Plenty (1992)
• Life in the Desert System (1994)
• Our Wonderful Wetlands (1993)
• The Desert's Struggle for Survival (1994)
• Preserving Our World Series: Gorillas--Beyond the Bars (1993)
• Preserving Our World Series: Sharks--Predators or Prey? (1993)
• Preserving Our World Series: Vanishing Treasures--Snakes, Lizards and Frogs (1993)
• Preserving Our World Series: Whose Woods Are These? (1993)
• 20/20 Vision: Managing for a Livable Urban Habitat (1993)
• Waste It...Not (1993)
• Wetland Blues (1993)
• Wonder Why? Series III (1993)

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