000 00256nam a2200109Ia 4500
008 231212s1969 xx 000 0 und d
041 _aeng
082 _a1.642
100 _aGray P.E.
245 _aElectronic Principles
260 _aSingapur
_bMcGrowh
_c1969
999 _c959079
_d959079