Methane control in tunneling
by Fred N. Kissell
Bok Språk ikke angitt 1989
Utgitt | Washington, D.C. : United States Department of the Interior, Bureau of Mines , 1989
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Omfang | 16 s. : ill.
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Emner |
Utgitt | Washington, D.C. : United States Department of the Interior, Bureau of Mines , 1989
|
---|---|
Omfang | 16 s. : ill.
|
Emner |