1. People of the Willows: The Prehistory and Early History of the Hidatsa Indians;Ahler,1991
2. Southwestern Minnesota Archaeology: 12,000 Years in the Prairie Lake Region;Anfinson,1997
3. Maize and bone: residues of grinding in northwestern Argentina;Babot;Archaeometry,2003
4. Modern macrofossil assemblages in lake sediments in Minnesota;Birks,1973
5. Hidatsa Social and Ceremonial Organization;Bowers,1992