| 000 | 00354cam a22001337a 4500 | ||
|---|---|---|---|
| 008 | 180718b xxu||||| |||| 00| 0 eng d | ||
| 082 | _aI5372 D63 | ||
| 245 | _aReference: disk operating system version | ||
| 260 |
_a _b _c |
||
| 300 | _av.p. | ||
| 650 | _aOperating systems (Computers) | ||
| 650 | _aMS-DOS (Computer file) | ||
| 650 | _aPC-DOS (Computer file) | ||
| 999 |
_c487995 _d487995 |
||