Proceedings, Fourth Conference on Ground Control in Mining, July 22-24, 1985
By: edited by S. S. Peng and J. H. Kelley.
Contributors: Kelley, Jay H.; Peng, Syd S., 1939-; United States. Bureau of Mines.; United States. Mine Safety and Health Administration.; West Virginia University.
Publisher: West Virginia University
Published: 1985
Place of publication: Morgantown, WV
Language: und
Number of pages: 285
Subjects: Ground control (Mining) -- Congresses.
Genres: Congresses.
Notes: Sponsored by: U.S. Bureau of Mines; U.S. Mine Safety and Health Administration; West Virginia University.

Accompanying material in pocket: Combating dust on shield supports on longwall mining, summary (2 leaves, 2 copies), Horizontal stresses and their impact on roof stability at the Nelms no. 2 mine / John B. Lizak and John E. Semborski ([8] p.), and Yield pillar applications-impact on strata control & coal production / by E. Martin ... [et al.] (20 leaves).

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