Yazar
Harry L Keil
2 cilt bulundu.
Cilt sonuçları
Cherry leaf-spot and its control
Harry L. Keil · U.S. Dept. of Agriculture
Sayfa sayısı yok · 1961
Leaf spots / Control / Cherry / Diseases and pests
Blight of pears, apples, and quinces
Harry L Keil · Dept. of Agriculture, Agricultural Research Service
Sayfa sayısı yok · 1977
Diseases and pests / Quince / Pear / Apples