Review of single-entry longwall mining technology in the United States
By: by F. M. Jenkins and E. T. Cullen.
Contributors: Cullen, E.T.
Series: Information circular (United States. Bureau of Mines) -- 9253.
Publisher: Dept. of the Interior
Published: 1990
Place of publication: Washington, DC
Language: eng
Number of pages: 18
Subjects: Longwall mining -- United States
Notes:  89600381 // t_oclc

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