International Monetary Fund. Statistics Dept. (1987). Direction of Trade Statistics Yearbook, 1987 Edition. International Monetary Fund.
Chicagoスタイル(17版)引用形式International Monetary Fund. Statistics Dept. Direction of Trade Statistics Yearbook, 1987 Edition. Washington, D.C.: International Monetary Fund, 1987.
MLA(8版)引用形式International Monetary Fund. Statistics Dept. Direction of Trade Statistics Yearbook, 1987 Edition. International Monetary Fund, 1987.
警告: この引用は必ずしも正確ではありません.