000			00334nam a2200133Ia 4500
008			221001s2004 xx 000 0 eng d
020			_a8187798011
082			_a577.14 SET
100			_aSethi, M. S.
245		0	_aEnvironmental chemistry
260			_aNew Delhi _bShri Sai Printographers _c2004
300			_a360p.
942			_2ddc _cBK
999			_c36308 _d36308