بواسطة Pinchot, Gifford, 1865-1946 / Ashe, W. W. (William Willard), 1872-1932 . النوع n-us-nc / Trees / North Carolina / Forests and forestry / North Carolina . الأسماء: bark / leaves / soil / wood / fruit و 2177 اكثر

بواسطة Pinchot, Gifford, 1865-1946 / Pinchot, Gifford,, 1865-1946 / Pinchot, Gifford,, 1865-1946 . النوع Forests and forestry / Trees . الأسماء: life / roots / wood / soil / leaves و 355 اكثر

بواسطة Pinchot, Gifford, 1865-1946 . النوع Spruce / Forests and forestry / Lumbering / Nehasane Park (N.Y.) . الأسماء: clara / soil / area / age / io و 381 اكثر

بواسطة Pinchot, Gifford, 1865-1946 . النوع n-us--- / Forests and forestry / Forestry schools and education / United States / Forests and forestry و 1 اكثر . الأسماء: wood / life / soil / area / order و 193 اكثر

بواسطة Sproul, William Cameron, 1870- [from old catalog] / Finegan, Thomas Edward, 1866- [from old catalog] / Pinchot, Gifford, 1865-1946 / Shoemaker, Henry Wharton, 1880- [from old catalog] / MacFarland, John Horace, 1859- [from old catalog] و 6 اكثر . النوع n-us-pa / Arbor Day / Bird Day / Roosevelt, Theodore1858-1919 / Game and game-birds و 12 اكثر . الأسماء: life / area / soil / flowers / shrubs و 239 اكثر

بواسطة Pinchot, Gifford, 1865-1946 / Pinchot, Gifford,, 1865-1946 / Pinchot, Gifford,, 1865-1946 . النوع Forests and forestry / Trees . الأسماء: wood / california / area / soil / age و 435 اكثر

بواسطة Pinchot, Gifford, 1865-1946 . النوع Forests and forestry / Forestry schools and education / United States . الأسماء: wood / life / soil / area / order و 191 اكثر

بواسطة Roberts, P. H. (Paul Harry) / Fry, Amelia R. / Kelley, Evan W. / Keller, John Weiman. / Pinchot, Gifford, 1865-1946 . النوع Pinchot, Gifford1865-1946 / Civilian Conservation Corps (U.S.) / United States.Forest Service. / Forests and forestry / United States . الأسماء: fry / california / american / area / called و 753 اكثر

بواسطة Pinchot, Gifford, 1865-1946 . النوع Forests and forestry / Trees. [from old catalog] . الأسماء: wood / leaves / soil / life / roots و 293 اكثر