000 00294nam a2200121Ia 4500
008 190723s9999 xx 000 0 und d
020 _a81-219-4282-9
100 _aR.S Aggarwal
245 0 _aObjective Mathematics
260 _aNew Delhi
_bS.Chand Company
_c219
300 _a133.:p
942 _cBK
999 _c1930
_d1930