APA-čujuhus (7. p.)
Mutel, C. F. (2008). The emerald horizon: The history of nature in Iowa. University of Iowa Press.
Chicago-čujuhus (17. p.)
Mutel, Cornelia Fleischer. The Emerald Horizon: The History of Nature in Iowa. Iowa City: University of Iowa Press, 2008.
MLA-čujuhus (9. p.)
Mutel, Cornelia Fleischer. The Emerald Horizon: The History of Nature in Iowa. University of Iowa Press, 2008.
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