000 00305nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a5.3684
_bReference OB
100 _aReference obbins (J) .
245 0 _aMastering DOS5 .
260 _bBPB Publications
_aNew Delhi
_c1992
300 _a828
942 _2ddc
999 _c6989
_d6989