000 00332nam a2200133Ia 4500
008 210901s1990 xx 000 0 eng d
082 _a621.38132 GRA
100 _aGraf, Rudolf F.
245 4 _aThe encyclopaedia of electronic circuits
260 _aDelhi
_bBPB
_c1990
300 _a744
650 _aEngineering
942 _2ddc
_cBK
999 _c18972
_d18972