Papers presented before the seventh Symposium on Coal Mine Drainage Research : Coal and the Environment Technical Conference, October 18-19-20, 1977, Kentucky Fair and Exposition Center, Louisville, Kentucky.
Papers presented before the seventh Symposium on Coal Mine Drainage Research : Coal and the Environment Technical Conference, October 18-19-20, 1977, Kentucky Fair and Exposition Center, Louisville, Kentucky.
Symposium is integral part of NCA's 1974 Coal and the Environment Technical Conference.Sponsored by National Coal Association."Organized by Bituminous...