000 00406cam a2200169ua 4500
020 _a81-203-0984-7
082 _a621.382
_bROD/E
100 _aRoddy, Dennis
245 0 0 _aElectronic communication
250 _a4th ed.
260 _aNew Delhi
_bPrentice Hall
_c1999
300 _aix, 820p.
500 _aIncludes index.
650 0 _aElectronic communications
700 0 2 _aCoolen, John
942 _cBK
999 _c2259
_d2259