000 00254nam a2200109Ia 4500
008 160710s1937 xx 000 0 und d
100 _aEVERITT ,W.L
245 _aCOMMUNICATION ENGINEERING
260 _bMCGRAW HILL
_c1937
300 _a727
942 _2ddc
_cB
999 _c6460
_d6460