Yazar
Orator Fuller Cook
29 cilt bulundu.
O. F. Cook · Stevens and Sons
337 sayfa · 1907
Cotton, Hindi / Hindi Cotton / Sea Island cotton / Breeding
O. F. Cook · Government Printing Office
87 sayfa · 1906
Cotton / Varieties / Diseases and pests / Control / Beetles
O. F. Cook · U.S. Dept. of Agriculture, Bureau of Plant Industry
23 sayfa · 1910
Cotton growing / Selection (Plant breeding)
O. F. Cook · U.S. Dept. of Agriculture, Division of Botany
Sayfa sayısı yok · 1899
Plant introduction / United States. Department of Agriculture. Section of Seed and Plant Introduction / United States
O. F. Cook · U.S. Dept. of Agriculture, Bureau of Entomology
15 sayfa · 1904
Kelep / Boll weevil / Biological control
O. F. Cook · U.S. Dept. of Agriculture, Bureau of Plant Industry
18 sayfa · 1910
Cotton / Mutation breeding