000 00251nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aUpadhayay, Alok
245 0 _aComputer Shiksha
260 _aAgra
_bAgarwal
_c2012-
300 _a195p.
942 _cBK
999 _c15544
_d15544