000 00305nam a22001217a 4500
008 180606b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a043.3
100 _a0
101 _aSHKI-BTH
245 _aImplementing network security at Layer 2 and Layer 3 OSI model
_cGashi,L
942 _2udc
_cBK
999 _c46416
_d46416