Christiaensen, L. J., & Demery, L. (2007). Down to earth: Agriculture and poverty reduction in Africa. World Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিChristiaensen, Luc J., এবং Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. Washington, DC: World Bank, 2007.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিChristiaensen, Luc J., এবং Lionel Demery. Down to Earth: Agriculture and Poverty Reduction in Africa. World Bank, 2007.