000 00390nam a2200157Ia 4500
008 220601s2018 xx 000 0 eng d
020 _qPB
041 _aEnglish
082 _a004.65
_bSTA Q8
100 _aStalling, William
245 0 _aCryptography and network security
250 _a1st
260 _aDelhi
_bPearson Education
_c2018
650 _aComputer Science
942 _2ddc
_cBK
999 _c25503
_d25503