International Monetary Fund. Real Sector Division & ebrary, Inc. (1993). A Guide to Direction of trade statistics. International Monetary Fund.
Chicagoスタイル(17版)引用形式International Monetary Fund. Real Sector Division , Inc ebrary. A Guide to Direction of Trade Statistics. Washington, D.C.: International Monetary Fund, 1993.
MLA(9版)引用形式International Monetary Fund. Real Sector Division , Inc ebrary. A Guide to Direction of Trade Statistics. International Monetary Fund, 1993.
警告: この引用は必ずしも正確ではありません.