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1“...Report of investigations (United States. Bureau of Mines) ;...”
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2by Cavallaro, J. A.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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3by Kuchta, J. M.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1980
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4by Schultze, L. E. (Lawrence E.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1981
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5by Smelley, Annie G.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1980
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6by Mussler, R. E. (Ralph E.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1981
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7Published 1982“...Report of investigations (United States. Bureau of Mines) ;...”
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8by Peterson, R. E. (Roy Ernest), 1926-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
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9by Durkin, John“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1984
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10by Kilau, H. W. (Howard W.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1984
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11Published 1983“...Report of investigations (United States. Bureau of Mines) ;...”
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12by Organiscak, John A.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
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13Published 1983“...Report of investigations (United States. Bureau of Mines) ;...”
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14by Molinda, G. M. (Gregory M.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1985
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15by Hundley, Gary L.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1985
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16Published 1985“...Report of investigations (United States. Bureau of Mines) ;...”
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17Published 1985“...Report of investigations (United States. Bureau of Mines) ;...”
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18by Campoli, A. A. (Alan A.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1986
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19by Huggins, Charles W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1986
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20by Olson, Keith S.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1987
Government Document Book