000 00278nam a2200121Ia 4500
008 220201s1994 xx 000 0 eng d
082 _a5.58
_bDUN
100 _aDuncan,Ray
245 0 _aAdvanced Ms-Dos programming
260 _aDelhi
_bPHI
_c1994
300 _a669
942 _2ddc
999 _c34909
_d34909