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101by Wilson, Donald A.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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102by Tweeton, Daryl R.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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103Published 1976“...Report of investigations (United States. Bureau of Mines) ;...”
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104“...Report of investigations (United States. Bureau of Mines) ;...”
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105by Hertzberg, Martin“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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106“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Book -
107“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Book -
108“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Book -
109“...Report of investigations (United States. Bureau of Mines) ;...”
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110Published 1976“...Report of investigations (United States. Bureau of Mines) ;...”
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111by Bowser, Merle L.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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112“...Report of investigations (United States. Bureau of Mines) ;...”
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113by Popp, John T.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1976
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114“...Report of investigations (United States. Bureau of Mines) ;...”
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115“...Report of investigations (United States. Bureau of Mines) ;...”
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116Published 1976“...Report of investigations (United States. Bureau of Mines) ;...”
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117by Paulson, D. L. (Danton L.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1978
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118by Eurth, Donald I.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1978
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119by Divers, Edward F.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1978
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120Published 1978“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Book