000			00660 a2200229 4500
005			20231223093932.0
008			231215b |||||||| |||| 00| 0 eng d
020			_a9789391061937
080			_a(079.1):502 _bNAC/E''2021'' R
100			_aNachiketa, Neeraj.
245			_aEnvironment and ecology : a dynamic approach.
250			_a3rd.ed.
260			_bG. K. Publications. _c2021. _aNew Delhi.
300			_a365p.
653			_aUPSC civil service examination
653			_aEnvironment.
653			_aEcology.
653			_aUN Conferences on Environment.
653			_aSustainable Development.
653			_aBiological Diversity.
942			_cREF
999			_c112111 _d112110