000			00312nam a22001337a 4500
008			170721b xxu||||| |||| 00| 0 eng d
020			_a9780789500533
041			_aeng
080			_a004
100			_a28
101			_aSHKI
245			_adata communications and computer networks _cWHITE, C.M
942			_2udc _cBK
999			_c21717 _d21717