000 00266nam a2200109Ia 4500
008 240131s9999 xx 000 0 und d
020 _a81-7648-590-x
050 _aGE105.K36 2008
100 _aKumar, Arvind
245 0 _aTextbook of environmental science
942 _cBK
999 _c7379
_d7379