000 00306nam a2200121Ia 4500
005 20240713144814.0
008 240712s9999 xx 000 0 und d
041 _aeng
100 _aAahuja, H.L.
245 _aUchchatar aarthik sidhdhant
260 _aNew Delhi
_b H.Chand and Compani
_c2017
300 _a1048
999 _c21765
_d21765