000 00348nam a2200157Ia 4500
100 _aPROAKIS JOHN G
020 _a0-07-100269-3
250 _a2nd
365 _cRS
365 _d1
942 _cENGBK
654 _aDigital communication
245 _aDigital Communications
260 _bMcGraw-hill Book co,
_c1989
_aNEW YORK
300 _axiii+905
999 _c3484
_d3484