United Nations Conference on Trade and Development. (2002). Investment and innovation policy review: Ethiopia. United Nations.
Chicago-referens (17:e uppl.)United Nations Conference on Trade and Development. Investment and Innovation Policy Review: Ethiopia. New York: United Nations, 2002.
MLA-referens (9:e uppl.)United Nations Conference on Trade and Development. Investment and Innovation Policy Review: Ethiopia. United Nations, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.