000 00261nam a22001217a 4500
020 _aNA
082 _222
_a004.68
100 _aKeiser gerd E.
245 _aLocal area network /
260 _aMGH,
_bMGH,
_cc1989
300 _a420 p,;
_bNA
_c24cm.
942 _2ddc
_cIT
999 _c2244
_d2244