000 00284nam a2200121Ia 4500
020 _a9789352869152
082 _a004.6
_bCOM
100 _aComer, Douglas E.
245 0 _aComputer Networks And Internets
250 _a6th
260 _bPearson Education
_aNoida
_c2023
942 _2ddc
_cREF
999 _c1978
_d1978