Investigations of the Preparation and Use of Lignite, 1918-1925 Ozni Porter Hood Published: 1926 Total Pages: 782 Get eBook
Technical Paper - Bureau of Mines United States. Bureau of Mines Published: 1934 Total Pages: 1482 Get eBook
Bibliography of Bureau of Mines Investigations of Coal and Its Products, 1910-60 United States. Bureau of Mines. Division of Bituminous Coal Published: 1962 Total Pages: 172 Get eBook
Bibliography of United States Bureau of Mines Investigations on Coal and Its Products 1910-1930 Arno Carl Fieldner Published: 1931 Total Pages: 60 Get eBook
Hearings, Reports and Prints of the House Committee on Interior and Insular Affairs United States. Congress. House. Committee on Interior and Insular Affairs Published: 1965 Total Pages: 1594 Get eBook
