Não informado. (2001). Direction of Trade Yearbook. International Monetary Fund.
Chicagoスタイル(17版)引用形式Não informado. Direction of Trade Yearbook. Washington: International Monetary Fund, 2001.
MLA(8版)引用形式Não informado. Direction of Trade Yearbook. International Monetary Fund, 2001.
警告: この引用は必ずしも正確ではありません.