1. Bates, D., and S. Lees 1977 The Cole of Exchange in Productive Specialization.American Anthropologist79:824 -841.
2. Brandon House Post Journal 1793-Reels 1M16 and 1M17. Hudson 0039’s Bay Company 1811 Archives, Winnipeg.
3. Coates, E. (Editor) 1892History of the Expedition under the Command of Lewis and Clark, 1804-07. Dover blications, New York.
4. James, E. 1956Thirty Years Indian Captivity of John Tanner. Ross and I airies, New York.
5. Larocque, F-A. 1985 Francois-Antoine Larocque’s Yellow stone Journal [1805].’ In:Early Fur Trade on the Northern Plains, edited by W.R. Wood and T. Thiessen. University of Oklahoma Press, Norman.