Mittlefehldt, S., & Cronon, W. (2013). Tangled roots: The Appalachian Trail and American environmental politics. University of Washington Press.
Chicago-viite (17. p.)Mittlefehldt, Sarah, ja William Cronon. Tangled Roots: The Appalachian Trail and American Environmental Politics. Seattle: University of Washington Press, 2013.
MLA-viite (9. p.)Mittlefehldt, Sarah, ja William Cronon. Tangled Roots: The Appalachian Trail and American Environmental Politics. University of Washington Press, 2013.
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