000 00357nam a2200157Ia 4500
008 230913s9999 xx 000 0 und d
082 _a621.4 bel
100 _aBellamy, John C.
245 0 _aDigital Telephony
250 _aIII
260 _aNEW DELHI
260 _bJOHN WILEY
260 _c2000
300 _a643
650 _aElectronics Engineering
999 _c132628
_d132628