000 00369 a2200121 4500
999 _c188391
_d188391
008 180906b xxu||||| |||| 00| 0 eng d
020 _a978070655485
084 _2cc
_azobT:5(A),5
100 _aSingh, Ashok Kumar
245 _aScience and technology for civil services examinations/
260 _bMcGraw Hill Education (India) Pvt Ltd
_c2017
_aNew Delhi
942 _cREF