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020 _a9789327199000
_qPB
040 _aUPES LIBRARY
_bEnglish
082 _a628
_bSIN
100 _aSingla, Deepika
_9768191
245 _aUGC NAT environmental science
_b: NET, JRF, SET
260 _bArihant,
_aNew Delhi :
_c2023
300 _a691p.
650 _aCompetitive exam
_9770337
653 _aEnvironmental science
700 _aSharma, Vivek
_910518
942 _cBK
999 _c826591
_d826591