000 00293nam a2200121Ia 4500
008 220901s2010 xx 000 0 eng d
082 _a628 NAM
100 _aNambiar, K.R
245 0 _aTextbook of environment studies
260 _bScitech
_c2010
_aChennai
300 _aD.F.
942 _2ddc
_cREF
_02
999 _c607
_d607