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020 _a9789388080279
020 _qpbk
082 _a351.076620
_bIES.4E
100 _aIES Master Publication
245 0 _aBasics of energy and environment: ESE-2020 prelims paper-I [4th ed.]
250 _a4th ed.
260 _aNew Delhi
_bIES Master Publication
_c2019
300 _avi, 208p. ; 27cm.
653 _aCompetitive exams
653 _aEcological engineering
653 _aEnviornmental sciences
653 _aPower resources History
942 _cBK
999 _c57065
_d57065