000 00255nam a2200121Ia 4500
082 _a621.382 HAY
100 _aHAYKIN, SIMON
245 _aCOMMUNICATION SYSTEMS
250 _aED 4
260 _bJOHN WILEY & SONS
_c2004
300 _a816
942 _2ddc
_cB
999 _c60105
_d60105