APA-referens (7:e uppl.)
Eicher, T. S., & Henn, C. (2009). In search of WTO trade effects: Preferential trade agreements promote trade strongly, but unevenly. International Monetary Fund.
Chicago-referens (17:e uppl.)
Eicher, Theo S., och Christian Henn. In Search of WTO Trade Effects: Preferential Trade Agreements Promote Trade Strongly, but Unevenly. [Washington D.C.]: International Monetary Fund, 2009.
MLA-referens (9:e uppl.)
Eicher, Theo S., och Christian Henn. In Search of WTO Trade Effects: Preferential Trade Agreements Promote Trade Strongly, but Unevenly. International Monetary Fund, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.