000 00308nam a2200121Ia 4500
005 20240713150856.0
008 240712s9999 xx 000 0 und d
041 _aeng
100 _aTomasi, w.
245 _aIntroduction to data communications & networking
260 _aNoida
_b Pearson
_c2011
300 _a985
999 _c31731
_d31731