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1by Hazen, Scott W.“...U.S. Department of the Interior, Bureau of Mines,...”
Published 1963
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2by Hazen, Scott W., Jr“...U.S. Department of the Interior, Bureau of Mines,...”
Published 1963
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3by Dale, V. B.“...U.S. Department of the Interior, Bureau of Mines : United States Government Printing Office,...”
Published 1959
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Address at time of PURL creation
Government Document eBook