000 00269nam a2200109Ia 4500
008 190703s9999 xx 000 0 und d
082 _a622.33 D11
100 _aDATTA,N.K
245 0 _aELECTRICAL ENGINEERING IN MINES
260 _aCALCUTTA
_bNEW CENTRAL
942 _cBB
_2DDC
999 _c5581
_d5581