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United States. Federal Highway Administration, United States. Federal Energy Administration, United States. Energy Research and Development Administration, agus 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.