Yazar
George Durward Smith
1 cilt bulundu.
Cilt sonuçları
Studies in the biology of the Mexican cotton boll weevil on short-staple upland, long-staple upland, and sea-island cottons
George Durward Smith · U.S. Dept. of Agriculture
44 sayfa · 1921
Boll weevil / Cotton / Diseases and pests