بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Fertilizers. [from old catalog] / Soil fertility. [from old catalog] . الأسماء: soil / plants / area / type / areas و 402 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 / Bonsteel, F.E. . النوع Soils / South Carolina / Lancaster Co . الأسماء: soil / wheat / plants / area / ca و 56 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Livestock / Dairying . الأسماء: animals / animal / type / bacteria / horse و 1747 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 / Bonsteel, F.E. . النوع Soils / South Carolina / Darlington Co . الأسماء: soil / area / type / wheat / grass و 157 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Agriculture . الأسماء: soil / plants / fruit / wheat / animals و 18319 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Fruit-culture. [from old catalog] / Vegetable gardening. [from old catalog] / Floriculture. [from old catalog] . الأسماء: fruit / soil / plants / leaves / roots و 2248 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Fruit-culture / Vegetable gardening / Floriculture . الأسماء: fruit / plants / soil / leaves / roots و 2415 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 / Blasingame, Ralph Upshaw, 1886- [from old catalog] . النوع Soils / Tillage. [from old catalog] . الأسماء: soil / bacteria / plants / wheat / organic matter و 1403 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 / Blasingame, Ralph Upshaw, 1886- [from old catalog] . النوع Soils / Tillage. [from old catalog] . الأسماء: soil / bacteria / plants / wheat / organic matter و 1403 اكثر

بواسطة Gardner, Frank D. (Frank Duane), 1864-1963 . النوع Soils / Maryland . الأسماء: soil / plants / wheat / organic matter / type و 97 اكثر