000 00287nam a2200121Ia 4500
100 _aMcClain, Gary R.
020 _a0-07-044969-4
942 _cBK
245 _aOpen Systems Interconnection Handbook
260 _aMcGraw - Hill, New York
_cc1990
082 _a004.6 McC
300 _axx,393
999 _c29269
_d29269