000 00331nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _a4.6
_bCOM
100 _aComer Douglas E
245 0 _aComputer network and internets
260 _aNew Delhi :
_bAddison Wesley,
_c2021.
350 _a260
650 _aManagement
999 _c165594
_d165594