000 00320nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a005.82 STA
100 _aStalling (William )
245 _aCryptography and Network Security Principal and Practice
260 _aNEW DELHI
_bPEARSON
365 _cRS
999 _c184715
_d184715