000 00250nam a2200109Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aHaykin (Simon)
245 0 _aCommunication System
250 _a1
260 _bJOHN WILEY
942 _2ddc
_cSCIENCE
999 _c19722
_d19722