000 00299nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aGeorge Kennedy
245 0 _aElectronic Communication systems
250 _a4
260 _bTata Mcgraw Hill, New Delhi
_c2008
942 _cBK
999 _c14237
_d14237