Adoption of agricultural innovations in developing countries a survey
| Váldodahkki: | |
|---|---|
| Materiálatiipa: | Girji |
| Giella: | eaŋgalasgiella |
| Almmustuhtton: |
Washington
World Bank
c1981.
|
| Ráidu: | World Bank staff working paper
444 |
| Fáttát: |