000 00291nam a22001217a 4500
999 _c6028
_d6028
003 OSt
005 20210316130727.0
008 210316b ||||| |||| 00| 0 eng d
100 _aLOUIS E. FRENZEL
245 _aPRINCIPLES OF ELECTRONIC COMMUNICATION SYSTEMS
260 _bTMH
942 _2ddc
_cGE