Furness, Ron. « The Sea Chart: The Illustrated History of Nautical Maps and Navigational Charts. Foreword by HRH The Duke of York; By John Blake, Published by Conway Maritime Press, 2004.  ». The International Hydrographic Review 5, no. 3 (décembre 12, 2004). Consulté le juillet 17, 2024. https://journals.lib.unb.ca/index.php/ihr/article/view/20682.