000 00270nam a2200121Ia 4500
020 _a978-8177585582
082 _a621.382
100 _aDennis Roddy
_918
245 0 _aElectronic Communications 4th Ed
250 _a4
260 _bPearson, New Delhi
_c2013
942 _cBK
999 _c36835
_d36835