Chapter 46 Contributions of National Agricultural Research Systems to Crop Productivity
| Autor: | Evenson, Robert E., Gollin, Douglas |
|---|---|
| Zdroj: | In Handbook of Agricultural Economics 2007 3:2419-2459 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
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| Autor: | Evenson, Robert E., Gollin, Douglas |
|---|---|
| Zdroj: | In Handbook of Agricultural Economics 2007 3:2419-2459 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
|