00439nam a2200169Ia 4500 170901s1969 xx 000 0 und d 0471937525 581.2 W39I Wheeler, B.E.J. An Introduction to Plant Diseases London John Wiley and Sons Ltd. 1969 374 Botanical sciences Pure Sciences Plant pathology ddc BK 8788 8788 0 0 ddc 0 0 RAU RAU 2017-10-18 0 581.2 W39I 7216 2017-10-18 2017-10-18 BK