000 00296nam a2200121Ia 4500
008 210122s9999 xx 000 0 und d
100 _aMicrosoft Group
942 _cBK
245 _aDisk Operating System
260 _bPc Computer Language Series
_c1983
082 _a3.9
_bMIC
546 _aENGLISH
999 _c28010
_d28010