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Hydrography and the international hydrographic organization
“D.C. Kapoor; United Nations. Economic and Social Council; United Nations. Economic Commission for Africa (1972-10). Hydrography and the international hydrographic organization. UN. ECA Regional Cartographic Conference for Africa. (3rd : 1972, Oct. 30 - Nov. 10 : Addis Ababa, Ethiopia). Addis Ababa :. © UN. ECA,. http://hdl.handle.net/10855/11114”