Mittlefehldt, S., & Cronon, W. (2013). Tangled roots: The Appalachian Trail and American environmental politics. University of Washington Press.
芝加哥风格引文Mittlefehldt, Sarah, 与 William Cronon. Tangled Roots: The Appalachian Trail and American Environmental Politics. Seattle: University of Washington Press, 2013.
MLA引文Mittlefehldt, Sarah, 与 William Cronon. Tangled Roots: The Appalachian Trail and American Environmental Politics. University of Washington Press, 2013.
警告：这些引文格式不一定是100％准确.