000 00318nam a2200109Ia 4500
008 230131s9999 xx 000 0 und d
082 _a4.678
_bCOM
100 _aCOMER, Douglas E.
245 0 _aComputer networks and internets: with internet applications
260 _aNew Delhi
_bPerson Education
_c2008
942 _cPRCD
999 _c170300
_d170299