Show Appearances
- July 23, 1989
Topic: Secrets of the Soil: A Fascinating Account of Recent Breakthroughs - Scientific and Spiritual - That Can Save Your Garden or Farm (with Christopher Bird), Harper & Row, 1989
- February 6, 1988
Topic: The Secret Life of Plants (with Christopher Bird), Harper & Row, 1973
Books
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Secrets of the Soil: A Fascinating Account of Recent Breakthroughs – Scientific and Spiritual – That Can Save Your Garden or Farm (with Christopher Bird), Harper & Row, 1989
Secrets of the Soil: A Fascinating Account of Recent Breakthroughs – Scientific and Spiritual – That Can Save Your Garden or Farm (with Christopher Bird), Harper & Row, 1989