000 00261nam a2200121Ia 4500
008 200701s1998 xx 000 0 eng d
100 _aHAYKIN SIMON
245 0 _aCOMMUNICATION SYSTEMS
250 _a3rd
260 _bTMH
_c1998
300 _a872
942 _2ddc
_cGE
999 _c339
_d339