000 00316nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a628.5
100 _aRaghavan Nambiar K
245 0 _aText book of Environmental Studies 2nd Edition
250 _a2
260 _bScitech Publishers,New Delhi
_c2015
942 _cBK
999 _c28965
_d28965