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1Published 1979“...Report of investigations (United States. Bureau of Mines) ;...”
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2by Maysilles, J. H. (James H.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1978
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3Published 1980“...Report of investigations (United States. Bureau of Mines) ;...”
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4by Gomes, J. M. (John M.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1980
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5Published 1980“...Report of investigations (United States. Bureau of Mines) ;...”
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6by Salisbury, H. B.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1981
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7by Schultze, L. E. (Lawrence E.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1982
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8Published 1990“...Report of investigations (United States. Bureau of Mines) ;...”
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9by Carter, J. P. (John P.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1992
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10Published 1990“...Report of investigations (United States. Bureau of Mines) ;...”
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11by Kuczynski, R. J. (Robert J.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1995
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12“...Report of investigations (United States. Bureau of Mines) ;...”
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13“...Report of investigations (United States. Bureau of Mines) ;...”
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14“...Report of investigations (United States. Bureau of Mines) ;...”
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15by Wiebelt, Frank J.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1951
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16“...Report of investigations (United States. Bureau of Mines) ;...”
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17“...Report of investigations (United States. Bureau of Mines) ;...”
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18by Aune, Quintin A.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1959
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