000 00271nam a22001217a 4500
999 _c452116
_d452116
020 _a9780071181839
082 _a621.38275
100 _aPROAKIS,John.G
245 _aDIGITAL COMMUNICATIONS
250 _a3rd edition
260 _aBoston
_bMcGrawHill
_c2001
942 _cBK