United Nations Conference on Trade and Development. (2004). Incentives. United Nations.
Chicago-referens (17:e uppl.)United Nations Conference on Trade and Development. Incentives. New York, Geneva: United Nations, 2004.
MLA-referens (9:e uppl.)United Nations Conference on Trade and Development. Incentives. United Nations, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.