000 00286nam a22001217a 4500
020 _a9788131705735
100 _aJohn G Proakis
245 _aFundamentals of communication systems
260 _aNew Delhi
_bPearson
_c2013
300 _axviii+858
700 _aMasoud Salehi
942 _cBK
999 _c58431
_d58431