Mariana Islands
- "Ladrone Islands," in The American Cyclopædia (1879)
- "Ladrone Islands," by Edwin Dampier Brickwood in Encyclopædia Britannica, Ninth Edition (v. 14) (1882)
- "Ladrone Islands," in The New International Encyclopædia, New York: Dodd, Mead and Co. (1905)
- "Ladrones," in The Nuttall Encyclopædia, (ed.) by James Wood, London: Frederick Warne and Co., Ltd. (1907)
- "Marianas (archipelago)," in Encyclopædia Britannica (11th ed., 1911)
- "Prefecture Apostolic of Mariana Islands," by Thomas Kennedy in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
- "Ladrones," in The New Student's Reference Work, Chicago: F.E. Compton and Co. (1914)
- "Ladrones," in Collier's New Encyclopedia, New York: P. F. Collier & Son Co. (1921)
- "Northern Mariana Islands," in The World Factbook, (ed.) by CIA (1990)
- "Northern Mariana Islands," in CIA World Fact Book, (ed.) by CIA (2004)
