To Read More:
Barrett, Samuel, 1933, Ancient Aztalan , Bulletin of the Public Museum of the City of Milwaukee, Vol XIII, Milwaukee, WI.
Birmingham, Robert and Lynne Goldstein, 2006, Aztalan: Mysteries of an Ancient Indian Town , Wisconsin Historical Society Press: Madison, Wisconsin.
Birmingham, Robert and Leslie Eisenberg, 2000, Indian Mounds of Wisconsin , University of Wisconsin - Madison Press.
Lapham, Increase A., 1855, The Antiquities of Wisconsin, http://www.library.wisc.edu/etext/Antiquities/
Pleger, Thomas Cary, 2000, Old Copper and Red Ocher Social Complexity, IN the Midcontinental Journal of Archaeology 25(2): 169-190.
Radin, Paul, 1990, The Winnebago Tribe , University of Nebraska Press: Lincoln.
Silverberg, Robert, 1976, The Mound Builders , Ballantine Press: New York.
"The Wisconsin Archeologist," the journal of the Wisconsin Archeological Society.
Birmingham, Robert, Carol I. Mason and James B. Stoltman (eds)., Handbook of Wisconsin Archaeology, 1997, "The Wisconsin Archeologist" 78(1/2).