Sulfur in Low-gravity Fractions of Some Bituminous Coals Thomas Fraser Published: 1947 Total Pages: 18 Get eBook
Technical Paper - Bureau of Mines United States. Bureau of Mines Published: 1945 Total Pages: 820 Get eBook
Annual Report of Research and Technologic Work on Coal Arno Carl Fieldner Published: 1949 Total Pages: 190 Get eBook
Publications of the Bureau of Mines on Coal Washing United States. Bureau of Mines Published: 1949 Total Pages: 14 Get eBook
