Yazar
Charles Elmer Owens
5 cilt bulundu.
Cilt sonuçları
Studies on the wood-rotting fungus, Fomes pini (Thore) Lloyd
Charles Elmer Owens · Yayınevi bilinmiyor
156 sayfa · 1934
Fomes pini (Thore) Lloyd / Wood-decaying fungi
European apple canker
Charles Elmer Owens · Oregon Agricultural College, Extension Service
Sayfa sayısı yok · 1918
European canker -- Oregon. / Apples -- Diseases and pests -- Oregon.
Onion mildew
Charles Elmer Owens · Oregon Agricultural College, Extension Service
Sayfa sayısı yok · 1917
Downy mildew of onion -- Oregon. / Onions -- Diseases and pests -- Oregon.