000 00282nam a2200109Ia 4500
008 230222s9999 xx 000 0 und d
100 _aK Raghavan Nambiar
245 0 _a Textbook Of Environmental Studies
250 _a1
260 _bScitech Publishers, Chennai
_c2007
942 _cBK
999 _c26355
_d26355