Proceedings of the 9th International Conference on Coal Research, October 13-16, 1991, Washington, DC.
Washington, DC: U.S. Department of the Interior, Bureau of Mines, 1991 Jan; :1-210
Contents includes reports on: Coal and the Environment; Coal Mining; Coal Combustion; and Coal and the Economy.
Coal-industry; Coal-mining; Combustion; Electric-power-plants; Environmental-effects; Expert-systems; International-cooperation; Meetings; Mine-safety; Research-and-development
NTIS Accession No.
Washington, DC: U.S. Department of the Interior, Bureau of Mines