United Nations, Conference on Trade and Development. (1971). Port statistics. Selection, collection and presentation of port information and statistics. United Nations.
Chicago Style (17th ed.) CitationUnited Nations, Conference on Trade and Development. Port Statistics. Selection, Collection and Presentation of Port Information and Statistics. Nueva York: United Nations, 1971.
MLA (9th ed.) CitationUnited Nations, Conference on Trade and Development. Port Statistics. Selection, Collection and Presentation of Port Information and Statistics. United Nations, 1971.
Warning: These citations may not always be 100% accurate.