Weber, David J. (1994). "The Mexican War: 1846–1848". The Spanish Frontier in North America. New Haven, CT: Yale University Press. p. 291. Archived from the original on April 26, 2023. Retrieved April 26, 2023.
Prucha, Francis Paul (2000). "The Reservation System". American Indian Policy in the Formative Years: The Indian Trade and Intercourse Acts, 1790–1834. Lincoln, NE: University of Nebraska Press. p. 352.[permanent dead link]
Weber, David J. (1994). "The Mexican War: 1846–1848". The Spanish Frontier in North America. New Haven, CT: Yale University Press. p. 291. Archived from the original on April 26, 2023. Retrieved April 26, 2023.