000 00939nam a2200253u 4500
001 01008994
003 PWmBRO
005 20240602102500.0
008 920622s1975 dcua b f0 010 eng
010 _a92045007
090 0 _aVF
_b622.06173/M133g
100 0 0 _aMcCulloch, C. M.
_q(Charles M.)
245 1 0 _aGeologic investigations of underground coal mining problems /
_cC. M. McCulloch, P. W. Jeran and C. D. Sullivan.
260 0 _aWashington, D.C. :
_bU.S. Dept. of the Interior,
_c[1975]
300 _a30 p. :
_bill.
490 1 _aReport of investigations / Bureau of Mines, U.S. Department of the Interior ;
_v8022
650 0 _aCoal mines and mining.
700 1 0 _aSullivan, C. D.
700 1 0 _aJeran, P. W.
710 2 0 _aUnited States Department of the Interior.
_bBureau of Mines.
830 0 _aReport of investigations (U.S. Department of the Interior.
_bBureau of Mines) ;
_v8022
942 _2ddc
994 0 1 _a085570
999 _c59982
_d59982