000 00292nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a628.5
100 _aRaghavan Nabiar K
245 0 _aTextbook of Environmental Studies
250 _a1
260 _bScitech Publishers
_c2007
942 _cBK
999 _c11882
_d11882