000 00413 a2200169 4500
020 _a8129701065
082 _a621.382
_bROD
090 _c4180
_d5216
100 _aRoddy, Dennis
245 _aElectronic communications
250 _a4th.
260 _aSingapore
_bPearson education
_c1995
_g1995
300 _aix, 820p.
_c24cm.
650 _aCOMMUNICATIONS ENGINEERING
700 _aCoolen, John
942 _cSR
999 _c33136
_d33136