Não informado. (2000). The Least developed countries. United Nations.
Chicagoスタイル(17版)引用形式Não informado. The Least Developed Countries. Geneva, Suíça: United Nations, 2000.
MLA(8版)引用形式Não informado. The Least Developed Countries. United Nations, 2000.
警告: この引用は必ずしも正確ではありません.