000 00318nam a2200133Ia 4500
005 20251003125709.0
008 251003s9999 xx 000 0 und d
082 _a005.8
100 _aStalling, William
245 0 _aNetwork Security Essentiials
260 _bPearson
_aNew Delhi
_c2019
300 _a461
942 _cBK
999 _c37376
_d37376