000 00289nam a2200121Ia 4500
100 _aDerfler, Frank.J & Freed, Les
020 _a9781562761295
942 _cBK
245 _aHow networks work
260 _aZiff-Davis press, Emeryville
_c1993
082 _a006.32 Der/Fre
300 _aix,216
999 _c45998
_d45998