000 00326nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a005.82
100 _aWilliam Stallings
245 0 _aCryptography and Network Security Principles and Practice
250 _a5
260 _bPearson Education,New Delhi
_c2011
942 _cBK
999 _c23373
_d23373