000 00251nam a2200109Ia 4500
008 220201s1990 xx 000 0 eng d
100 _aRAI H M
245 0 _aELECTRICAL ENGINEERING
260 _aDELHI
_bKHANNA PUB
_c1990
300 _a588
942 _2ddc
999 _c90751
_d90751