International Monetary Fund. Statistics Dept. (2012). Direction of Trade Statistics Quarterly, March 2012. International Monetary Fund.
Chicago-referens (17:e uppl.)International Monetary Fund. Statistics Dept. Direction of Trade Statistics Quarterly, March 2012. Washington, D.C.: International Monetary Fund, 2012.
MLA-referens (8:e uppl.)International Monetary Fund. Statistics Dept. Direction of Trade Statistics Quarterly, March 2012. International Monetary Fund, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.