Yazar
Claude Clarence Haren
3 cilt bulundu.
Cilt sonuçları
Conservation farming in selected areas of the southern Piedmont
Claude Clarence Haren · Agricultural Research Service, U.S. Dept. of Agriculture
59 sayfa · 1960
Soil conservation / Agriculture
Land resources of Fluvanna County, Virginia
Claude Clarence Haren · U.S. Dept. of Agriculture, Agricultural Research Service]
98 sayfa · 1957
Soil surveys / Land / Land tenure / Land use
Median family income and related data, by counties
Claude Clarence Haren · Resource Development Economics Division, Economic Research Service, U.S. Dept. of Agriculture
137 sayfa · 1964
Statistics / Agricultural wages / Farm income / Income