000			00321nam a2200145Ia 4500
008			140317s9999 xx 000 0 und d
082			_a581.2
100			_aSpencer,D.M.
245		4	_aThe powdery mildews.
260			_aLondon _bA.P. _c1978
300			_a565
650			_aBotany
653			_aBotany
942			_2ddc _cBK
999			_c10934 _d10934