000 00438nam a2200157Ia 4500
005 20220905104017.0
008 211115s9999 xx 000 0 und d
082 _aHZp1,N84
_bM4.4
245 0 _aOptimal exploitation of solid mineral resources challenges and constraints
250 _a1st.ed.
260 _aCalcutta
_bThe 12th World Mining Congress
_cc.1984
300 _a4.13
650 _aEarth Science
942 _cTB
942 _n0
999 _c35900
_d35900