Levine, D. N. (1974). Greater Ethiopia: The evolution of a multiethnic society. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Levine, Donald Nathan. Greater Ethiopia: The Evolution of a Multiethnic Society. Chicago: University of Chicago Press, 1974.
Lua MLA (8ú heag.)Levine, Donald Nathan. Greater Ethiopia: The Evolution of a Multiethnic Society. University of Chicago Press, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.