000 00318nam a2200157Ia 4500
082 _a621.380413/Bla
100 _aBlake, Roy
526 _dNTB
526 _aPG
366 _f20
942 _cBK
245 _aElectronic communication systems
260 _aDelhi
_bCengage
_c2002
300 _axx,963
546 _aE
999 _c78516
_d78516