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Ground control in mining : 9th International conference : Jun 1990, Morgantown, WV.

Ground control in mining : 9th International conference : Jun 1990, Morgantown, WV.
Paper図書
[np]1990.<M17-91-0210>
National Diet Library
  • Author HeadingUS Bureau of Mines. US Mine Safety and Health Administration. West Virginia University. Col...

Ground control in mining : 4th Conference : JUL 1985, Norgantown, WV.

Ground control in mining : 4th Conference : JUL 1985, Norgantown, WV.
Paper図書
<M17-87-1446>
National Diet Library
  • Author HeadingUS Bureau of Mines. US Mine Safety and Health Administration. West Virginia University.

Ground control in mining : 5th Conference : JUN 1986, Morgantown, VA.

Ground control in mining : 5th Conference : JUN 1986, Morgantown, VA.
Paper図書
<M17-87-1821>
National Diet Library
  • Author HeadingUS Bureau of Mines. US Mine Safety and Health Administration. West Virginia University. Dep...

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