000 00280 a2200121 4500
020 _a9781788823074
084 _2Colon Classification
_aD65171:88
100 _aMACK, Markus
245 _aCyber Security
260 _bEd-Tech Press
_c2018
_aU K
300 _a337p.
942 _cGEN
999 _c194929
_d194929