000 00330nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _a6
_bCOM
100 _aComer Douglas E
245 0 _aComputer network and internets
260 _aNew Delhi :
_bPearson Education,
_c2021.
350 _a0
650 _aManagement
999 _c170640
_d170640