000			00273nam a2200121Ia 4500
008			140317s9999 xx 000 0 und d
082			_a631.7
100			_aFAO
245			_aWater quality for agriculture.
260			_aRome _bFAO _c1989
300			_a174
942			_2ddc _cBK
999			_c12381 _d12381