000			00304 a2200109 4500
008			180809b xxu||||| |||| 00|
100			_a Wittman, G.T.W.
245			_aMetal pollution in the aquatic environment / _c Wittman, G.T.W.
260			_aBertin _b, Springer-Verlag _c1981
300			_a486
942			_2ddc _cBK
999			_c6863 _d6863