000 00328nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a621.38215 IRV
100 _aIRVIN (James)
245 _aData Communications and Networks: An Engineering Approach
260 _aNew Delhi
_bJohn Wiley & Sons
365 _cRS
999 _c180815
_d180815