000 00287nam a2200121Ia 4500
100 _aPoole, Owen
020 _a0 7506 50338
942 _cBK
245 _aNetwork security
_ba practical guide
260 _aButterworth heinemann, Oxford
_c2003
082 _a658.478 Poo
300 _axi, 212
999 _c44823
_d44823