Some variations in fruit, seed and seedling characteristics in the American elm, Ulmus Americana L., in relation to geography of seed source /
Guardat en:
| Autor principal: | |
|---|---|
| Format: | Thesis Llibre |
| Idioma: | English |
| Publicat: |
1966.
|
| Matèries: |
| Descripció física: | 221 leaves : ill. |
|---|---|
| Bibliografia: | Bibliography: leaves 212-221. |