Oversight Hearings: Coal mining research and development United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Research, Development, and Demonstration (Fossil Fuels) Published: 1975 Total Pages: 1406 Get eBook
Bureau of Mines Research and Technologic Work on Coal, 1961 United States. Bureau of Mines Published: 1963 Total Pages: 134 Get eBook
Borehole (slurry) Mining of Coal, Uraniferous Sandstone, Oil Sands, and Phosphate Ore George A. Savanick Published: 1987 Total Pages: 48 Get eBook
Bureau of Mines Research and Technologic Work on Coal, 1963 United States. Bureau of Mines Published: 1964 Total Pages: 140 Get eBook
Bureau of Mines Research and Technologic Work on Coal, 1964 United States. Bureau of Mines Published: 1965 Total Pages: 130 Get eBook
