Private Development Corporation of the Philippines. (1973). The ocean shipping industry: Prepared by the Economic and Corporate Research Office. s.n.].
Chicagoスタイル(17版)引用形式Private Development Corporation of the Philippines. The Ocean Shipping Industry: Prepared by the Economic and Corporate Research Office. [Makati, Rizal: s.n.], 1973.
MLA(9版)引用形式Private Development Corporation of the Philippines. The Ocean Shipping Industry: Prepared by the Economic and Corporate Research Office. s.n.], 1973.
警告: この引用は必ずしも正確ではありません.