000			00346nam a2200133Ia 4500
008			180710s9999 xx 000 0 und d
020			_a50288
082			_a592 _bPOL
100			_aHart,C.W., Jr., ed.
245			_aPOLLUTION ecology of freshwater invertebrates
260			_aNew York _bAcademic press _c1974
300			_axiv, 389 p.
942			_cS
999			_c74907 _d74907