000 00291nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aSanjay Sharma
245 0 _aDigital Communications
250 _a6
260 _bS K Kataria And Sons,New Delhi
_c2011
942 _cBK
999 _c21935
_d21935