APA-viite (7. p.)
(1988). Desertification control and renewable resource management in the Sahelian and Sudanian zones of West Africa. The World Bank.
Chicago-viite (17. p.)
Desertification Control and Renewable Resource Management in the Sahelian and Sudanian Zones of West Africa. Washington D.C: The World Bank, 1988.
MLA-viite (9. p.)
Desertification Control and Renewable Resource Management in the Sahelian and Sudanian Zones of West Africa. The World Bank, 1988.
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