Written Materials:
- Eagan, Jerry; The Captive; Desert Exposure; November, 2006.
- Eastman, Charles A.; Indian Heroes and Great Chieftains, 1918. (now in the public domain)
- Encyclopedia of North American Indians
- Hodge, Frederick Webb; Handbook of American Indians North of Mexico; Smithsonian Institution; 1910
- Mooney, James; The Ghost-dance Religion and the Sioux Outbreak of 1890, 14th Annual Report of the Bureau of American Ethnology, Part 2; 1894.
- Trail of Tears National Historic Trail, Comprehensive Management and Use Plan, US Dept of Interior, National Park Service
Websites:
Native Languages of the Americas