William Saunders
Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture
William Saunders · 2008
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
BotanyAgriculturePlants, Useful -- Catalogs and collectionsUnited States. Dept. of Agriculture -- CatalogsBotany, Economic -- Catalogs and collections