000 00337nam a2200133Ia 4500
008 221117s9999 xx 000 0 und d
082 _bHAR
100 _aHAROLD, S. WESTMAN
245 0 _aELECTRICAL COMMUNICATION VOL-39
260 _bINT TELEPHONE, NEW YORK
_c1964
300 _a577
650 _aElectrical Engineering
942 _cBK
999 _c211056
_d211056