Oostendorp, R., & Zaal, F. (2011). Understanding adoption of soil and water conservation techniques: The role of new owners. University of Oxford.
Lua i Stíl Chicago (17ú heag.)Oostendorp, R., agus F. Zaal. Understanding Adoption of Soil and Water Conservation Techniques: The Role of New Owners. University of Oxford, 2011.
Lua MLA (9ú heag.)Oostendorp, R., agus F. Zaal. Understanding Adoption of Soil and Water Conservation Techniques: The Role of New Owners. University of Oxford, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.