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United States. Federal Highway Administration, United States. Federal Energy Administration, United States. Energy Research and Development Administration, e National Research Council (U.S.). Transportation Research Board. Optimizing the Use of Materials and Energy in Transportation Construction: Proceedings of a Conference Conducted by the Transportation Research Board, November 12-14, 1975, and Sponsored by the Federal Highway Administration of the U.S. Department of Transportation, the Federal Energy Administration, and the Energy Research and Development Administration. Washington: National Academy of Sciences, 1976.

United States. Federal Highway Administration, et al. Optimizing the Use of Materials and Energy in Transportation Construction: Proceedings of a Conference Conducted by the Transportation Research Board, November 12-14, 1975, and Sponsored by the Federal Highway Administration of the U.S. Department of Transportation, the Federal Energy Administration, and the Energy Research and Development Administration. National Academy of Sciences, 1976.