Mining of Thin Coal Beds in the Anthracite Region of Pennsylvania Dever Campbell Ashmead Published: 1927 Total Pages: 162 Get eBook
Mining of Thin Coal Beds in the Anthracite Region of Pennsylvania Dever Campbell Ashmead Published: 1927 Total Pages: 113 Get eBook
Yearbook on Coal Mine Mechanization American Mining Congress Published: 1928 Total Pages: 290 Get eBook
Journal of the American Society of Heating and Ventilating Engineers Published: 1928 Total Pages: 994 Get eBook
Pumped-slurry Backfilling of Abandoned Coal Mine Workings for Subsidence Control at Rock Springs, Wyo Gary J. Colaizzi Published: 1981 Total Pages: 108 Get eBook
Bibliography of United States Bureau of Mines Investigations on Coal and Its Products, 1910-35 Arno Carl Fieldner Published: 1937 Total Pages: 154 Get eBook
Fluorspar: Its Mining, Milling, and Utilization with a Chapter on Cryolite Raymond Bardeen Ladoo Published: 1927 Total Pages: 636 Get eBook
