000 00297nam a2200121Ia 4500
008 200701s2009 xx 000 0 eng d
100 _aWILLIAM STALLINGS
245 0 _aCRYPTOGRAPHY AND NETWORK SECURITY
250 _a4th
260 _bPEARSON EDUCATION
_c2009
300 _a680
942 _2ddc
_cGE
_01
999 _c3884
_d3884