000 00318nam a2200133Ia 4500
008 230222s9999 xx 000 0 und d
082 _a005.432
100 _aPreston Gralla
245 0 _aHow Personal Internet Security Work
250 _a2
260 _bPearson Educations
_c2012
650 _aCOMPUTER
942 _cBK
999 _c22889
_d22889