Berg, E. (1975). The recent economic evolution of the Sahel. Center for Research on Economic Development, University of Michigan.
Chicago-referens (17:e uppl.)Berg, Elliot. The Recent Economic Evolution of the Sahel. Ann Arbor: Center for Research on Economic Development, University of Michigan, 1975.
MLA-referens (8:e uppl.)Berg, Elliot. The Recent Economic Evolution of the Sahel. Center for Research on Economic Development, University of Michigan, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.