International Monetary Fund. Statistics Dept. (2011). Direction of Trade Statistics Quarterly, September 2011. International Monetary Fund.
Chicago-Zitierstil (17. Ausg.)International Monetary Fund. Statistics Dept. Direction of Trade Statistics Quarterly, September 2011. Washington, D.C.: International Monetary Fund, 2011.
MLA-Zitierstil (8. Ausg.)International Monetary Fund. Statistics Dept. Direction of Trade Statistics Quarterly, September 2011. International Monetary Fund, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.