000 00290nam a22001217a 4500
008 180222b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _29 ed
_a33
100 _a56
101 _abus
245 _abusiness data communications and networking
_cfitz.g.d
942 _2udc
_cBK
999 _c43123
_d43123