000 00304nam a2200133Ia 4500
008 241124s9999 xx 000 0 und d
100 _aKennedy, G.;Davis, B.
245 0 _aElectronic Communication Systems
250 _a4
260 _bTata McGraw Hill
260 _c2002
300 _a763
942 _cBK
999 _c3137
_d3137