Christiaensen, L. J., & Demery, L. (2007). Down to earth: Agriculture and poverty reduction in Africa. World Bank.
Lua i Stíl Chicago (17ú heag.)Christiaensen, Luc J., agus Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. Washington, DC: World Bank, 2007.
Lua MLA (9ú heag.)Christiaensen, Luc J., agus Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. World Bank, 2007.
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