- Stephen Blauer, "The Juicing Book"
- Garden City Park, NY. Avery Publishing Group, 1989
- Richard A.Passwater, Ph.D., "Beta-Carotene"
- New Canaan, CT., Keats Publishing, Inc., 1984
- Richard A. Passwater, Ph.D., "Beta-Carotene and Other Carotenoids"
- New Canaan, CT., Keats Publishing, Inc. 1996
- N.W. Walker, D.Sc., "Fresh Vegetable and Fruit Juices"
- Prescott, AZ., Norwalk Press, 1970
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