Christiaensen, L. J., & Demery, L. (2007). Down to earth: Agriculture and poverty reduction in Africa. World Bank.
Chicago-referens (17:e uppl.)Christiaensen, Luc J., och Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. Washington, DC: World Bank, 2007.
MLA-referens (9:e uppl.)Christiaensen, Luc J., och Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. World Bank, 2007.