000 00345nam a2200145Ia 4500
008 231217s9999 xx 000 0 und d
041 _aEnglish
082 _a005.4469 SCH
100 _aSchildt, Herbert
245 0 _aDos made easy
260 _cNULL
_bOsborne, California
300 _axi+286
650 _aOperating systems
942 _cAA
999 _c160854
_d160854