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Technology, employment, and output per man in iron mining
Yaworski, Nicholas; Kiessling, O. E.; Baxter, C. H. - 1940
Persistent link: https://www.econbiz.de/10002811893
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The coal industry of Brazil
Good, John E. (contributor) - United States / Bureau of Mines - 1951
Persistent link: https://www.econbiz.de/10002913248
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Mechanization, employment, and output per man in bituminous-coal mining
Hotchkiss, Willard E. (contributor) - 1939
Persistent link: https://www.econbiz.de/10003085757
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The coal industry of Brazil ; 1
Good, John E. (contributor) - United States / Bureau of Mines - 1949
Persistent link: https://www.econbiz.de/10003102317
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The coal industry of Brazil ; 2
Good, John E. (contributor) - United States / Bureau of Mines - 1951
Persistent link: https://www.econbiz.de/10003102320
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Platinum-group metals
Jolly, James H. - 1978
Persistent link: https://www.econbiz.de/10001414071
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Aluminum
Stamper, John William - 1978
Persistent link: https://www.econbiz.de/10001414072
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Tin
Harris, Keith L. - 1978
Persistent link: https://www.econbiz.de/10001414073
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Silver
Drake, Harold J. - 1978
Persistent link: https://www.econbiz.de/10001414089
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Fuel and energy data : United States by States and regions, 1972
Crump, Lulie H. - 1974
Persistent link: https://www.econbiz.de/10001419979