000 00269nam a2200109Ia 4500
020 _a8126508396
022 _a621.382
100 _aRODGER J, ZEIMER and TERNDER, WILLIAM H
245 _aPRINCIPLE OF COMMUNICATION SYSTEM:MODULATION AND NOISE
260 _c2006
942 _cBK
999 _c967
_d967