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008 181113b ||||| |||| 00| 0 eng d
020 _a9788131761755
040 _cPK-IsLIS
082 _a005.8
_bSt18
100 _a Stallings, William
245 _a Network security essentials : applications and standards
_c/ William Stallings
250 _a4th ed.
260 _aNew Delhi :
_bPearson Education,
_c2011
300 _axiii, 417 p.
500 _aIncludes index & appendix
650 _aComputer networks--Security measures
942 _cBK
505 0 _a1. Cryptography 2. Network security applications 3. System security