000 00300nam a2200109Ia 4500
999 _c4297
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082 _a378.242 K82D
100 _aKonanahalli,G.P
_9825
245 0 _aDevelopment And Quality Improvement Of Vacuum Tubes
260 _aSurathkal
_bK.R.E.C
_c1970
942 _cTH