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Donald Folsom

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Donald Folsom · Maine Agricultural Experiment Station

44 sayfa · 1923

Potatoes / Diseases and pests

Donald Folsom · Maine Agricultural Experiment Station

28 sayfa · 1924

Potatoes / Diseases and pests

Donald Folsom · Maine Agricultural Experiment Station

52 sayfa · 1921

Potato leafroll disease

Donald Folsom · Maine Agricultural Experiment Station

184 sayfa · 1920

Potato mosaic virus / Potato virus A.

Donald Folsom · Yayınevi bilinmiyor

276 sayfa · 1918

Ranunculus

Donald Folsom, Reiner Bonde · Yayınevi bilinmiyor

783 sayfa · 1937

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