USDA research into organic farming
| Autor: | Jawson, Michael D., Bull, Carolee T. |
|---|---|
| Zdroj: | American Journal of Alternative Agriculture, 2002 Dec 01. 17(4), 201-202. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | Jawson, Michael D., Bull, Carolee T. |
|---|---|
| Zdroj: | American Journal of Alternative Agriculture, 2002 Dec 01. 17(4), 201-202. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|