000 00297nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aSanjay Sharma
245 0 _aCommunication Systems (Analog & digital)
250 _a3
260 _bS K Kataria And Sons
_c2006
942 _cBK
999 _c8134
_d8134