000 00305nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aMicrosoft
245 0 _aMS DOS Operating System
250 _a-
260 _a-
260 _b-
260 _c0
650 _aMS DOS Operating System
942 _cBK
999 _c12723
_d12723