000 00290nam a2200121Ia 4500
020 _a9788183711111
100 _aRaghavan Nambiar K
245 _aTextbook of Environmental Studies
250 _a2nd
260 _bScitech Publications (India)
_aChennai
_c2016
300 _a8.11
942 _cBB
999 _c58013
_d58013