000 00338nam a2200181Ia 4500
008 181031s9999 xx 000 0 und d
082 _a4
082 _bLEA
245 _aLearners Guide to Dos.
250 _a3rd.
260 _bNIIT
260 _c1993
300 _a43p.
365 _b0
365 _d0
365 _e0
650 _aComputer
942 _cBK
999 _c1393
_d1393