000 00304nam a22001217a 4500
008 251124b |||||||| |||| 00| 0 eng d
020 _a81-88458-20-1
100 _aS. Sharma
245 _aCommunication Systems Analog & Digital
260 _aNew Delhi
_bKataria
_c2009
300 _a970
942 _2ddc
_cBK
999 _c21636
_d21636