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1by Hanson, Bruce D.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1979
Government Document Book -
2by Roepke, Wallace W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
Government Document Book -
3by Roepke, Wallace W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
Government Document Book -
4by Roepke, Wallace W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
Government Document Book -
5by Roepke, Wallace W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1983
Government Document Book -
6by Roepke, Wallace W.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1985
Government Document Book -
7by Plis, Matthew N.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1988
Government Document Book -
8by Hanson, Bruce D.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1989
Government Document Book -
9by Hanson, Bruce D.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1988
Government Document Book -
10Published 1995“...Report of investigations (United States. Bureau of Mines) ;...”
Government Document Microform Book