000 00475nam a2200193Ia 4500
008 191002s9999 xx 000 0 und d
020 _a0000094767
082 _a1.621
100 _aWilliam Stallings
245 0 _aNetwork Security Essentials,Ed4
250 _a4
260 _aNew Delhi
_bPearson
_c2011
536 _aManagement
650 _a Network
650 _a Security
650 _aComputer Networks Datanetworks
650 _aEssentials,Ed4
942 _cBK
999 _c29605
_d29605