000 00329nam a2200157Ia 4500
082 _a621.38/Cou
100 _aCouch, Leon W
526 _dTB
526 _aUG
366 _f20
942 _cBK
245 _aDigital and analog communication systems.-8th ed.
260 _aNoida
_bPearson
_c2014
300 _a676
546 _aE
999 _c78755
_d78755