Não informado. (2011). Review of Maritime Transport. United Nations.
Chicagoスタイル(17版)引用形式Não informado. Review of Maritime Transport. New York: United Nations, 2011.
MLA(8版)引用形式Não informado. Review of Maritime Transport. United Nations, 2011.
警告: この引用は必ずしも正確ではありません.