000 00289nam a2200121Ia 4500
008 200701s1997 xx 000 0 eng d
100 _aSINGH
245 0 _aPrinciples&Practices of Modern Coal Mining
250 _a1
260 _bNewdelhi & Newage
_c1997
300 _a696
942 _2ddc
_cBO
999 _c5731
_d5731