000 00241nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aPALMER (MICHAEL)
245 0 _aOPERATION SYSTEM SECURITY
260 _bCENGAGE LEARNING
942 _2ddc
_cMCA
999 _c13170
_d13170