000 00273nam a22001217a 4500
999 _c1668
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020 _a8176481580
082 _a338.2096
100 _aA K Ghose & B B Dhar
245 _aMining challenges of the 21st century
260 _aNew Delhi
_bAPH
_c2000
300 _a813
942 _cBK