000 00314nam a2200133Ia 4500
005 20241109020005.0
008 200701s2009 xx 000 0 eng d
100 _aWILLIAM STALLINGS
245 0 _aNetwork security essentials
250 _a3rd
260 _bPEARSON EDUCATION
300 _a409
942 _2ddc
_cGE
_04
999 _c3993
_d3993