Yazar
samuel plant
8 cilt bulundu.
Clarence Samuel Coleman, United States. Bureau of Plant Industry, Soils, and Agricultural Engineering · U.S. Govt. Print. Off.
126 sayfa · 1952
Soil surveys / Soils / Maps
Samuel B. Detwiler, G. P. Clinton, Florence A. McCormick, W. S. Regan, American Plant Pest Committee · American Plant Pest Committee
12 sayfa · 1919
Kategori yok
Samuel Oscar Perkins, William Gettys, United States. Bureau of Plant Industry, North Carolina Agricultural Experiment Station, Tennessee Valley Authority · U.S. Govt. Print. Off.
102 sayfa · 1951
Soil surveys / Soils
G. P. Clinton, Samuel B. Detwiler, W. S. Regan, Perley Spaulding, W. A. McCubbin, Haven Metcalf, American Plant Pest Committee · American Plant Pest Committee
16 sayfa · 1918
Plant parasites / Periodicals
Samuel Oscar Perkins, William Gettys, United States. Bureau of Plant Industry, Soils, and Agricultural Engineering, North Carolina Agricultural Research Service, Tennessee Valley Authority · The Bureau
85 sayfa · 1952
Soil surveys / Soils / Maps
Samuel Oscar Perkins, William Gettys, United States. Bureau of Plant Industry, Soils, and Agricultural Engineering, North Carolina Agricultural Experiment Station, Tennessee Valley Authority · U.S. Govt. Print. Off.
85 sayfa · 1952
Soil surveys / Maps
Samuel Oscar Perkins, E. F. Goldston, William Gettys, United States. Bureau of Plant Industry, North Carolina. Department of Agriculture, North Carolina Agricultural Research Service · For Sale by the Supt. of Docs.
52 sayfa · 1941
Soil surveys / Soils / Maps