000 00340nam a2200133Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a338.27(54)
_bIn39
110 _aIndian Mining Journal v3 no.9 Sept 1955
245 _aIndian Coal Industry Symposium
260 _aCalcutta
942 _cBK
999 _c34431
_d34431