000			00301nam a2200121Ia 4500
008			151015s9999 xx 000 0 und d
020			_a9251025568
245			_aWater quality criteria for european fish
260			_c1987
300			_axii 61p.
500			_aEIFAC technical paper
942			_cFAO _2udc
999			_c25125 _d25125