000 00267nam a22001217a 4500
999 _c6088
_d6088
003 OSt
005 20210318161730.0
008 210318b ||||| |||| 00| 0 eng d
100 _aPROAKIS, G. JOHN
245 _aDIGITAL COMMUNICATIONS
260 _bTMH
942 _2ddc
_cGE