000 00321nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.382
100 _aLouis E Frenzel
245 0 _aPrinciples of Electronic Communication systems 3rd Edition
250 _a3
260 _bMc Graw Hill,New Delhi
_c2015
942 _cBK
999 _c28950
_d28950