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2. Melvin Calvin. “Hydrocarbons via Photosynthesis.” Presented af the 110th meeting of the Rubber Division, American Chemical Society, San Francisco, California, October 5–8, 1976.
3. William J. Jewell (Ed.). “Energy Agriculture, and Waste Management: Proceedings of the 1975 Cornell Agricultural Waste Management Conference.” Ann Arbor Science Publications, Ann Arbor, Michigan.
4. Wendel W. Waterman and Donald L. Klass. “Biomass as a Long Range Source of Hydrocarbons.” Presented at the 110th meeting of the Rubber Division, American Chemical Society, San Francisco, California, October 5–8, 1976.
5. Energy from short-rotation forestry evaluated. 1976.Chem. Eng. News 54(51): 35.