000 00236nam a2200109Ia 4500
082 _a621.38 HAY
100 _aHAYKIN, SIMON
245 _aCOMMUNICATION SYSTEMS
260 _aNEW YORK
_bJOHN WILEY
_c1978
300 _a620
942 _2ddc
_cB
999 _c41359
_d41359