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