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Practical considerations in longwall face and gate road support selection and utilization / by Thomas M. Barczak, David E. Schwemmer, Carol L. Tasillo.

By: Barczak, Thomas M.
Contributor(s): Schwemmer, David E | Tasillo, Carol L | United States. Bureau of Mines.
Material type: materialTypeLabelBookSeries: United States Bureau of Mines. Information circular 9217. Publisher: Washington, D.C. (2401 E St., N.W., Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines, 1989Description: ii, 22 p. : ill. ; 28 cm.Report number: USBM ic-9217Subject(s): Mine roof control | Longwall mining -- Safety measures
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Bibliography: p. 22.

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