000			00292nam a2200121Ia 4500
008			140317s9999 xx 000 0 und d
082			_a632
100			_aFry,William E.
245			_aPrinciples of plant disease management.
260			_aN.Y. _bA.P. _c1982
300			_a378
942			_2ddc _cBK
999			_c10774 _d10774