Berg, E. (1975). The recent economic evolution of the Sahel. Center for Research on Economic Development, University of Michigan.
Lua i Stíl Chicago (17ú heag.)Berg, Elliot. The Recent Economic Evolution of the Sahel. Ann Arbor: Center for Research on Economic Development, University of Michigan, 1975.
Lua MLA (8ú heag.)Berg, Elliot. The Recent Economic Evolution of the Sahel. Center for Research on Economic Development, University of Michigan, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.