000 00444nam a2200181Ia 4500
008 221105s9999 xx 000 0 und d
041 _aENGLISH
082 _a005.8 N7 (MCA)
082 _bPET
100 _aPETER T DAVIS; BARRY D LEVIS
245 0 _aCOMPUTER SECURITY FOR DUMMIES
250 _a1
260 _bCOMDEX COMPUTER PUBLISHING.
260 _c1990
650 _aCOMPUTER SCIENCE
650 _bCOMPUTER SECURITY
942 _cBK
999 _c1085
_d1085