00440nam a2200157Ia 4500008004100000020000700041082001400048100001900062245004700081250000800128260003200136300002400168500001900192600002100211650005000232240925s9999    xx            000 0 und d  aNA  a005.8 ATK  aAtkins , Derek 0aInternet Security: professional reference   a2nd  aBoston:bNew Ridersc,1997.  a916p.bNAfOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works