000 00335nam a2200133Ia 4500
005 20260413101040.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aFrengel Louis E
245 0 _aPrinciples of Electronic Communication Systems
260 _bNew Delhi MGH
_c2016
300 _a885
942 _cGB
999 _c6407
_d6407