000 00287nam a2200097Ia 4500
008 230130s2010 xx 000 0 und d
041 _aeng
100 _aMehta, M.
_91493720
245 _aUnderstanding Environmental Science
260 _aN. Delhi
_bDiscovery Publishing House Pvt. Ltd.,
_c2010
999 _c976378
_d976378