Tohutoro APA (7th ed.)
Birmingham, R. A. (2010). Spirits of earth: The effigy mound landscape of Madison and the Four Lakes. University of Wisconsin Press.
Tohutoru Kātū Chicago (17th ed.)
Birmingham, Robert A. Spirits of Earth: The Effigy Mound Landscape of Madison and the Four Lakes. Madison, Wis.: University of Wisconsin Press, 2010.
Tohutoro MLA (9th ed.)
Birmingham, Robert A. Spirits of Earth: The Effigy Mound Landscape of Madison and the Four Lakes. University of Wisconsin Press, 2010.
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