000 00328nam a2200157Ia 4500
100 _aCouch, Leon W
080 _a621.38 Cou
526 _dTB
526 _aUG
366 _f20
942 _cBK
245 _aDigital and analog communication systems 8th ed
260 _aPearson
_bDelhi
_cc2014
300 _a676
546 _aE
999 _c72748
_d72748