000 00781nam a2200217 4500
001 00092908
003 PWmBRO
005 20240602103746.0
008 940905s1993 mdua b f00010 eng
110 2 0 _aUnited States.
_bBureau of Mines.
245 1 0 _aEngineering methods for the design and employment of wood cribs /
_cby Thomas M. Barczak and David F. Gearhart.
260 0 _aAvondale, Md. :
_bU.S. Dept. of the Interior, Bureau of Mines,
_c1993.
300 _a34 p.
440 1 _aInformation circular ;
_v9361
650 0 _aMines and mineral resources.
650 0 _aMine timbering
_xDesign and construction.
650 0 _aMine timbering
_xTesting.
700 2 0 _aBarczak, Thomas M.
830 0 _aInformation circular (United States. Bureau of Mines) ;
_v9361
942 _2ddc
999 _c80480
_d80480