000			00368nam a2200145Ia 4500
008			210101s2009 xx 000 0 eng d
020			_a9788171339051
082			_a574.5 S 23 E
100			_aSharma, P. D.
245		0	_aEcology and environment
260			_aMeerut _bRastogi Publications _c2009
300			_a600
650			_aEcology & Environment
942			_2ddc _cBK
999			_c2657 _d2657