000 01116cam a2200265 a 4500
999 _c814
_d814
001 3940787
003 Biblioteca de INTEMIN
005 20180427200135.0
008 930621s1993 dcua b f000 0 eng
010 _a 93005540
040 _aDLC
_cDLC
_dDLC
050 0 0 _aTN295
_b.U4 no. 9370
_aTN288
082 0 0 _a622 s
_a622/.334
_220
100 2 _aShea-Albin, V. R.
_92643
245 1 0 _aGeological features that contribute to ground control problems in underground coal mines /
_cby Valois R. Shea-Albin.
260 _aWashington, DC :
_bU.S. Dept. of the Interior, Bureau of Mines,
_c1993.
300 _aii, 38 p. :
_bill. ;
_c28 cm.
490 1 _aInformation circular ;
_v9370
504 _aIncludes bibliographical references (p. 32-34).
650 0 _aGround control (Mining)
_9737
650 0 _aCoal
_xGeology.
_92496
830 0 _aInformation circular (United States. Bureau of Mines) ;
_v9370.
_9794
906 _a7
_bcbc
_corignew
_d1
_eocip
_f19
_gy-gencatlg
942 _2udc
_cCR