000 00292nam a22001217a 4500
020 _a9788131725436
100 _aCouch Leon
_911533
245 _aDigital And Analog Communication
250 _a7th ed.
260 _aNew Delhi
_bPearson Prentice Hall
_c2012
300 _a749 pg.
942 _cBOOK
999 _c11063
_d11063