Christiaensen, L. J., & Demery, L. (2007). Down to earth: Agriculture and poverty reduction in Africa. World Bank.
Tohutoru Kātū Chicago (17th ed.)Christiaensen, Luc J., me Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. Washington, DC: World Bank, 2007.
Tohutoro MLA (9th ed.)Christiaensen, Luc J., me Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. World Bank, 2007.