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2. Bailey, Garrick. 2004. Continuity and Change in Mississippian Civilization. In Hero, Hawk, and Open Hand: American Indian Art of the Ancient Midwest and South, ed. Richard F. Townsend and Robert V. Sharp, 82–91. Chicago: The Art Institute of Chicago.
3. ———. 2008. Introduction. In Handbook of North American Indians. Volume 2. Indians in Contemporary Society, ed. Garrick A. Bailey, 1–9. Washington: Smithsonian Institution.
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5. Birmingham, Robert A. 2010. Spirits of Earth: The Effigy Mound Landscape of Madison and the Four Lakes. Madison: University of Wisconsin Press.