000 00240nam a22001217a 4500
003 SGT
082 _a004.6
_bCOM
100 _aCOMBER,E.D
245 _aCOMPUTER NETWORKS AND INTERNET
250 _a4TH
260 _aPEARSON
942 _2ddc
_cCD
999 _c24315
_d24315