00431nam a2200121 a 450000500170000008200150001710000060003211000230003824501650006126000330022630000350025963000150029420251202164126.0  a549.2bSIG  d_  aInstitute of India  aSignificant discoveries of geology for mineral industries during the past decadebsymposium organised by mining, geological and metallurgical institute of India  aCalcuttabOxford & IBHc1984  axiv,f320 p.bill.c24 cm.bPB  aMineralogy