Macchiavelli, A. “International Cooperation in Hydrography — A Letter to the Editor from Vice Admiral A. Macchiavelli Formerly Director of the Hydrographic Institute of the Italian Navy”. The International Hydrographic Review 54, no. 1 (July 9, 2015). Accessed May 19, 2025. https://journals.lib.unb.ca/index.php/ihr/article/view/23709.