000 00283nam a2200109Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
100 _aCSR
245 0 _aObjective General Knowledge
260 _aCSR Publication
_bNew Delhi
_c2019
300 _a306p.;28cm
_b240
650 _aMATHEMATICS
999 _c137370
_d137370