000 00273nam a2200121Ia 4500
008 220201s1998 xx 000 0 eng d
082 _a621.3
_bBHA
100 _aBhattacharya
245 0 _aElectronic machines
260 _aDelhi
_bTMH
_c1998
300 _a542
942 _2ddc
999 _c35477
_d35477