000 00279nam a2200121Ia 4500
008 221001s9999 xx 000 0 eng d
082 _a330 AGG (H)
100 _aAggarwal, O. M.
245 0 _aAarthik siddhant
260 _aDelhi
_bP. Chand
300 _a222p.
942 _2ddc
_cBK
999 _c19558
_d19558