000			00302 a2200121 4500
080			_a632.952 _bH 817 P
245	1		_aPrinciples of fungicidal action _cby J.G. Horsfall
260			_aMassachusetts _c1956
650			_aFungicidal Action
100	1		_aHorsfall, J.G. _d
300			_a279 p.
901			_a78654
999			_c46812 _d46812