000 00310nam a2200133Ia 4500
008 220201s2015 xx 000 0 eng d
082 _a621.382
_bPRO
100 _aProakish, John G
245 0 _aCommunication system engg.
250 _a2
260 _bChennai: Pearson
_c2015
300 _a801
942 _2ddc
999 _c88734
_d88734