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_d28839
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020 _a8129706083
082 _a5.8
_bTHO
_223
100 _aTHOMAS, Tom
245 _aNetwork security first-step /
_c[by] Tom Thomas
260 _aDelhi
_bPearson Education
_c2004
300 _axxi, 456 p. -
440 _afirst-step series
500 _aIncludes appendix, glossary and index.
650 _aComputer network security
650 0 _a Data secuirity
_9131665
942 _cR