000 00359nam a2200169Ia 4500
100 _aRoddy, Dennis & Coolen, John
080 _a621.38 Rod/Coo
526 _dTB
526 _aUG
366 _f20
250 _a4th ed .
942 _cBK
245 _aElectronic communications
260 _aPearson
_bNew Delhi
_c2009
300 _axi, 723
546 _aE
999 _c72543
_d72543