Anell, L., & Nygren, B. (1980). The developing countries and the world economic order. St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)Anell, Lars, agus Birgitta Nygren. The Developing Countries and the World Economic Order. New York: St. Martin's Press, 1980.
Lua MLA (9ú heag.)Anell, Lars, agus Birgitta Nygren. The Developing Countries and the World Economic Order. St. Martin's Press, 1980.