000			00650nam a2200145Ia 4500
999			_c5890 _d5890
005			20220525152236.0
008			180712s9999 xx 000 0 und d
020			_a80234429
082			_a574.929 _bSYM _223
111			_9135638 _aSYMPOSIUM on biological aspects of freshwater pollution (Italy: 1978)
245			_aBiological aspects of freshwater pollution _c/organized by Commission of the European Communities, proceedings of the course held at the joint research center of the Commission of the European Communities, Ispra, Italy, 5-9 June 1978 , edited by O.Ravera,
260			_ataOxford _bPergamon Press _c1979
300			_aix, 214 p.
942			_cR