000 00303nam a2200121Ia 4500
008 220201s1990 xx 000 0 eng d
100 _aGaddak & Haskins
245 3 _aAn introduction to computer studies
250 _a3
260 _bNew Delhi : Tata Mc Graw hill
_c1990
300 _a158
942 _2ddc
999 _c85184
_d85184