Practical considerations in longwall face and gate road support selection and utilization
By: by Thomas M. Barczak, David E. Schwemmer, and Carol L. Tasillo.
Contributors: Schwemmer, David E.; Tasillo, Carol L.
Series: Information circular (United States. Bureau of Mines) -- 9217.
Publisher: Dept. of the Interior
Published: 1989
Place of publication: Washington, DC
Language: eng
Number of pages: 22
Subjects: Mine roof control.; Longwall mining -- Safety measures
Notes:  88600440  t_oclc

Bibliogr.

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