000 00288nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aAnokh Singh
245 0 _aPrinciples of Communication Engineering
250 _a6
260 _bS Chand And Co
_c2004
942 _cBK
999 _c4956
_d4956