History of the certification section the potato association of America.
| Autor: | Knutson, Kenneth |
|---|---|
| Zdroj: | American Potato Journal; 1992, Vol. 69 Issue 6, p401-409, 9p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|
| Autor: | Knutson, Kenneth |
|---|---|
| Zdroj: | American Potato Journal; 1992, Vol. 69 Issue 6, p401-409, 9p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|
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