Multislice mining for thick western coal seams /

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Bibliographic Details
Main Author: Hackett, T. D.
Other Authors: Boreck, D. L. (Donna L.), Clarke, D. R.
Format: Unknown
Language:English
Published: PGH [i.e. Pittsburgh] Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1989.
Series:Information circular (United States. Bureau of Mines)
Subjects:
Coal mines and mining > West (U.S.)
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