00476nam a2200157Ia 4500008004100000020000700041082001400048100001900062245007600081250000800157260003900165300002400204500001900228600002100247650005000268240925s9999    xx            000 0 und d  aNA  a004.6 SOU  aSouth, Hills - 0aSouth-Hill Datacomm: your source for data comm and network connectivity  a2nd  aBrooklin:bSouth Hill DatacommcNA  a347p.bNAfOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works