000 00388nam a2200133Ia 4500
001 b4e66b26c98abf5fa779675886fdfc9d360bf7cb
008 140104s9999 xx 000 0 und d
100 _aStallings, William
245 _aCryptography and network security /
_c William Stallings
250 _a2nd ed.
260 _bTata McGraw-Hill
_aNew Delhi :
_cc2008.
942 _cBK
999 _c20309
_d20309