Não informado. (1956). Ports and Harbors. International Association of Ports and Harbors.
Chicagoスタイル(17版)引用形式Não informado. Ports and Harbors. Tokyo: International Association of Ports and Harbors, 1956.
MLA(8版)引用形式Não informado. Ports and Harbors. International Association of Ports and Harbors, 1956.
警告: この引用は必ずしも正確ではありません.