000 00294nam a2200133Ia 4500
020 _a9780074636824
100 _aGeorge Kennedy
245 _aElectronic Communication Systems
250 _a4th
260 _c2000
_bTMH
_aNew Delhi
300 _axv+763
700 _aBernard Davis
942 _cBB
999 _c59625
_d59625