000 00280nam a2200121Ia 4500
008 220201s1974 xx 000 0 eng d
082 _bSEL
100 _aSelly, S.
245 0 _aElectron tube-circuits
260 _aDelhi
_bTata Mc graw Hill
_c1974
300 _a695
942 _2ddc
999 _c19041
_d19041