Matheson Library
Empowering Knowledge, Inspiring Discovery

Roof control strategies for underground coal mines /

Roof control strategies for underground coal mines / by William C. Smith. - Avondale, Md. : U.S. Dept. of the Interior, Bureau of Mines, 1993. - 17 p. : ill. - Information circular ; 9351 .


Mines and mineral resources.
Mine roof bolting.
Mine roof control.
Coal mines and mining.