United Nations Educational, Scientific and Cultural Organization, & International Coordinating Council of the Programme on Man and the Biosphere. (1975). The Sahel: Ecological approaches to land use. Unesco Press.
Chicago-viite (17. p.)United Nations Educational, Scientific and Cultural Organization, ja International Coordinating Council of the Programme on Man and the Biosphere. The Sahel: Ecological Approaches to Land Use. Paris: Unesco Press, 1975.
MLA-viite (9. p.)United Nations Educational, Scientific and Cultural Organization, ja International Coordinating Council of the Programme on Man and the Biosphere. The Sahel: Ecological Approaches to Land Use. Unesco Press, 1975.
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