000 01415cam a2200337 a 4500
999 _c974
_d974
001 2016048
003 Biblioteca de INTEMIN
005 20180501014946.0
008 910926s1992 dcuab b f000 0 eng
010 _a 91037759
040 _aDLC
_cDLC
_dDLC
043 _an-us-wv
_an-us-pa
050 0 0 _aTN23
_b.U43 no. 9413
_aTN288
082 0 0 _a622 s
_a622/.334/09754
_220
086 0 _aI 28.22:9413
245 0 0 _aEffects of horizontal stress related to stream valleys on the stability of coal mine openings /
_cby G.M. Molinda ... [et al.].
260 _aWashington, D.C. :
_bU.S. Dept. of the Interior, Bureau of Mines,
_c[1992]
300 _a26 p. :
_bill., maps ;
_c28 cm.
490 1 _aReport of investigations ;
_v9413
504 _aIncludes bibliographical references (p. 24-25).
650 0 _aMine roof control.
_9691
650 0 _aRock bursts.
_91079
650 0 _aValleys.
_93101
650 0 _aCoal mines and mining
_zWest Virginia.
_93102
650 0 _aCoal mines and mining
_zPennsylvania.
_92991
700 1 _aMolinda, G. M.
_q(Gregory M.)
_93103
830 0 _aReport of investigations (United States. Bureau of Mines) ;
_v9413.
_9793
906 _a7
_bcbc
_corignew
_d1
_eocip
_f19
_gy-gencatlg
942 _2udc
_cCR