Stanford's Geographical Establishment, London: The World: Colonial Possesions and Commercial Highways, 1910, in: The Cambridge Modern History Atlas, hg. von Sir Adolphus William Ward, G.W. Prothero, Sir Stanley Mordaunt Leathes, und E.A. Benians. Cambridge University Press; London 1912, Karte 140. Bildquelle: Perry-Castañeda Library Map Collection. Mit freundlicher Genehmigung der University of Texas Libraries, The University of Texas at Austin, gemeinfrei.