| 000 | 00471nam a22001457a 4500 | ||
|---|---|---|---|
| 008 | 230327b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aD 681.066(082.2) _bL0 |
||
| 245 | _aComparative operating systems | ||
| 260 |
_aNew York: _bBrondon/Systems Press, Inc., _c1969 |
||
| 300 | _a124p. | ||
| 650 | _aComparative operating systems | ||
| 653 | _aThree dimensional operating systems | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c15327 _d15327 |
||