000 00338nam a22001337a 4500
999 _c8435
_d8435
008 200130b ||||| |||| 00| 0 eng d
020 _a9789332585225
082 _a005.82 STC
100 _aSTALLINGS,William
245 _aCryptography and network security
250 _a17th
260 _aNEW DELHI
_bPearson Education
_c2017