000 00851nam a2200229u 4500
001 00958956
003 PWmBRO
008 920110s1975 dcua b f0 010 eng
010 _a92015009
090 0 _aVF
_b622.0/6173/L123
245 0 0 _aLaboratory studies of yielding rock bolts /
_cby J.P. Conway ...[et al.], with an appendix on dynamic tests on rock bolts, by Kenneth G. Hoge.
260 0 _a[Washington] :
_bU.S. Dept. of the Interior, Bureau of Mines,
_c[1975].
300 _a40 p. :
_bill.
490 1 _aReport of investigations ;
_v8058
650 0 _aRock bolts.
700 1 0 _aConway, J. P.
710 2 0 _aUnited States.
_bBureau of Mines.
810 2 0 _aUnited States.
_bBureau of Mines.
_tReport of investigations ;
_v8058
830 0 _aReport of investigations (United States. Bureau of Mines) ;
_v8058
942 _2ddc
994 0 1 _a083688
999 _c64761
_d64761