000 00293nam a22001217a 4500
999 _c60330
_d60330
020 _a9789350143599
100 _aSanjay Sharma
245 _aCommunication Systems: Analog and Digital
250 _a7th
260 _aNew Delhi
_bS.K. Kataria & Sons
_c2021
300 _axvi+1D+1016
942 _cBB