000			00465nam a2200157Ia 4500
008			221122s9999 xx 000 0 und d
020			_a0080323138
082			_a543.9(28) N84
100			_aPascoe,D. ed.
245		0	_aProceedings of a specialised conference on Freshwater biological monitoring,12-14 sept,1984,U.K.
260			_bPergamon Press _aOxford _c1984
300			_a167 p.
650			_aFreshwater monitoring
700			_aEdwards, R.W. ed.
942			_cBK
999			_c2134 _d2134