000 00289nam a2200121Ia 4500
008 211209s1978 xx 000 0 und d
041 _aeng
082 _a621.382 N78 HAY
100 _aHAYKIN S
245 _aCOMMUNICATION SYSTEMS
260 _aINDIA
_bPRENTICE HALL
_c1978
300 _a637
999 _c107329
_d107329