Amjadi, A., Reincke, U., & Yeats, A. J. (1996). Did external barriers cause the marginalization of Sub-Saharan Africa in world trade? World Bank, International Economics Dept.
Chicago-referens (17:e uppl.)Amjadi, Azita, Ulrich Reincke, och Alexander J. Yeats. Did External Barriers Cause the Marginalization of Sub-Saharan Africa in World Trade? Washington, D.C: World Bank, International Economics Dept, 1996.
MLA-referens (9:e uppl.)Amjadi, Azita, et al. Did External Barriers Cause the Marginalization of Sub-Saharan Africa in World Trade? World Bank, International Economics Dept, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.