000			00292 a2200109 4500
020			_a9789355325556
100			_aAGRAHARI, RAVI P.
245			_aSCIENCE AND TECHNOLOGY FOR CIVIL SERVICES PRELIMINARY AND MAIN EXAMINATIONS
250			_a7
260			_bMC GRAW HILL, CHENNAI _c2024
942			_cBK
999			_c88624 _d88624