000 00305nam a2200121Ia 4500
008 221229s9999 xx 000 0 und d
100 _aThomas, Robert M.
245 0 _aDOS 6.0 & 6.2 Instant reference
260 _aNew Delhi
_b BPB Pub.
_c1994
300 _a346
650 _aComputer Science
942 _cBK
999 _c35435
_d35435