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999 _c136628
_d136628
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020 _a9789386035486
040 _aUPES LIBRARY
_bEnglish
082 _a628 SHA
100 _aSharma, J. P
_965047
245 0 _aEnvironmental studies : For undergraduate classes
250 _a4th, ed
260 _aNew Delhi :
_bUniversity Science Press,
_c2017
300 _axii, 316p.
650 _aEnvironmental science
_97598
942 _cBK