000 00261nam a2200109Ia 4500
008 220201s1980 xx 000 0 eng d
082 _a621.381
_bKUM
100 _aKumar,S
245 0 _aT.B of electronics
260 _bIndia publishing House
_c1980
942 _2ddc
999 _c82968
_d82968