Swanton, John R.
_______.
Teale, Edwin Way.
«The Story of John Deere». John Deere Company, 2003. http://www.deere.com/en_US/compinfo/history/
Toland, John.
«Tribes Consider Casino in Illinois».
United States Department of Agriculture.
United States Department of Health and Human Services. «American Indians/Alaska Natives and Substance Abuse». Prevention Alert 5, no. 16 9November 22, 2002), online article, http://www.ncadi.samhsa.gov/
«Uranium Impact Assessment». Southwest Research and Information Center Uranium Impact Assessment Program Website, December 2005. http://www.sric.org/uranium/index.html
Waters, Frank. «
Watson, Danny. «Henslow’s Sparrow».
White, John. «How the Terms Savanna, Barrens, and Oak Openings Were Used in Early Illinois». United States Environmental protection Agency, 1991, http://www.epa.gov/greatlakes/ecopage/upland/oak/oak94/Proceedings/White.html
«Winnebago Indian Reservation». Tribal website, 2005. http://www.winnebagotribe.com/aboutus.htm
Yellowman, Gordon. «Cheyenne and Arapaho History». Tribal website, 2005. http://www.cheyenneandarapaho.org/