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1by Iannacchione, Anthony T.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1979
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2Published 1983“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Book -
3by Iannacchione, Anthony T.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1979
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4by Knox, Clinton C.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1949
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5by Stroud, Raymond B.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1970
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6by Hill, H. B.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1949
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7“...Report of investigations (United States. Bureau of Mines) ;...”
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8“...Report of investigations (United States. Bureau of Mines) ;...”
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9“...Report of investigations (United States. Bureau of Mines) ;...”
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Government Document eBook