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008 251031s2007##################000#0#eng##
020 _a9780070655485
082 0 4 _a507.6
_bASH
100 1 _aSingh,
_eauthor.
245 1 0 _aScience & Technology For Upsc
260 _bTata McGraw-Hill Education,
_c2007.
942 _cENGLISH
040 _aACL
_beng
_cACL
999 _c594740
_d594740