000 00271nam a2200121Ia 4500
999 _c25832
_d25832
020 _a9788175441651
100 _aNagpal D P
245 _aComputer Science 'O' Level
250 _a1
260 _c1999
_bWHEELER PUBLISHING
_aNew Delhi
300 _aviii+316
942 _cBB