000 00306nam a2200121Ia 4500
008 160710s1950 xx 000 0 und d
082 _aRIC
100 _aRICH,CHARLES S
245 _aELECTRICAL ENGINEERING
260 _bAMERICAN INSTITUTE OF ELECTRICAL ENGINEERS
_c1950
300 _a578
942 _2ddc
_cB
999 _c31285
_d31285