000 00496nam a2200157Ia 4500
008 210716s2009 xx 000 0 und d
020 _a9788131503324
041 _aeng
082 _a004.65 SHEG
100 _aShelly, Gary B;Cashman, Thomas J;Serwatka, Judy A.
245 _aBusiness data communications: intriductory concepts and techniques.
_bIntriductory concepts and techniques.
250 _a1
260 _aNew Delhi
_bCengage Learning
_c2009
300 _axv,15.17,I20
650 _aNone
999 _c190140
_d190140