000 00301nam a2200133Ia 4500
100 _aCouch,Leon W
020 _a81-7808-328-0
250 _a6th ed
942 _cBK
245 _aDigital and Anolog Communication Systems
260 _aPearson, India
_c2001
082 _a621.38 Cou
300 _axxv,760
999 _c23496
_d23496