Mine roof simulator : definition and discussion of parameters /
Wade, Lewis V.
Mine roof simulator : definition and discussion of parameters / by Lewis V. Wade. - Washington, D.C. : U.S. Dept. of the Interior, [1975] - 18 p. : ill. - Report of investigations / Bureau of Mines, U.S. Department of the Interior ; 7971 . - Report of investigations (U.S. Department of the Interior. 7971 .
92045002
Coal mines and mining--Simulation methods.
Mine roof simulator : definition and discussion of parameters / by Lewis V. Wade. - Washington, D.C. : U.S. Dept. of the Interior, [1975] - 18 p. : ill. - Report of investigations / Bureau of Mines, U.S. Department of the Interior ; 7971 . - Report of investigations (U.S. Department of the Interior. 7971 .
92045002
Coal mines and mining--Simulation methods.