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005 20260205063329.0
008 260111s9999||||xx |||||||||||||| ||und||
020 _a9789353160890
082 _a500.76 Ag81S
100 _aAgrahari, Ravi P.
245 0 _aScience and technology
250 _a2nd
260 _aChennai
_bMcGraw Hill Education
_c2019
300 _aV.P.
690 _aCompetitive exam ;Science and technology ;Civil Services Exam ;UPSC
942 _cBK
999 _c183898
_d183898