Barczak, Thomas M.
Engineering methods for the design and employment of wood cribs / by Thomas M. Barczak and David F. Gearhart. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1993. - ii, 34 p. : ill. ; 28 cm. - Information circular ; 9361 . - Information circular (United States. Bureau of Mines) ; 9361. .
Includes bibliographical references (p. 25).
93011141
Mine timbering--Design and construction.
Mine timbering--Testing.
TN295 TN289 / .U4 no. 9361
622 s 622/.28
Engineering methods for the design and employment of wood cribs / by Thomas M. Barczak and David F. Gearhart. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1993. - ii, 34 p. : ill. ; 28 cm. - Information circular ; 9361 . - Information circular (United States. Bureau of Mines) ; 9361. .
Includes bibliographical references (p. 25).
93011141
Mine timbering--Design and construction.
Mine timbering--Testing.
TN295 TN289 / .U4 no. 9361
622 s 622/.28