000 00290nam a2200121Ia 4500
008 160710s1950 xx 000 0 und d
082 _a631.38 ALB
100 _aALBERT ,LEMUEL
245 _aELECTRICAL COMMUNICATION
260 _bJOHN WILEY & SONS
_c1950
300 _a593
942 _2ddc
_cB
999 _c11881
_d11881