• Sand Dune Ecology and Formation (1987)
• Plant Growth Regulators (19??)
• Endangered Species (19??)
• Primitive Plants: The Algae (19??)
• Seasons in the Woodlands (1993)
• Fossils: Plants and Tetrapods (1981)
• Plants in Peril (1986)
• Nature's Pharmacy: Edible Wild Plants (1990)
• Nature's Pharmacy: Trees, Shrubs, Nuts & Berries (1990)
• Biotech in Your Backyard (1993)
• Corn Recovery from Hail Damage (1985)
• Diagnosing Herbicide Injury (1991)
• How to Take Plant Samples for Chemical Analysis (1988)
• Fertilizing for Dollars: Soil Fertility and Fertilizer Use (1991)
• 4-H Workshops and Trips Promo (1990)
• Fruit Diseases (1988)
• Growing Fruit: General Considerations (1988)
• Growing Fruit: Small Fruit (1989)
• Ornamental Plant Diseases (1989)
• Poinsettia Selection and Care for Consumers (1989)
• The Kingdom of Plants (1993)
• The Plant World (1986)
• Wonder Why? Series III (1993)
• Challenge (1987)
• Science for You (1992)

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