000 00291nam a2200121Ia 4500
008 231107s2009||||xx |||||||||||||| ||und||
100 _aSehgal, Umesh
245 0 _aNetwork Security and Cryptography
250 _a1st
260 _aNew Delhi
_bKatson Books
_c2009
300 _a343
942 _cBK
999 _c3924
_d3924