000 00323nam a2200145Ia 4500
020 _a0000000000
082 _b1464
_a001.642
100 _a"NA"
245 0 _aMicrosoft MS-DOS 6
260 _b,Micrsoft Orportion
_c1901
300 _a280
944 _cBK
999 _c630034
_d630034