Paul, S. (1992). For love of the world: Essays on nature writers. University of Iowa Press.
芝加哥风格引文Paul, Sherman. For Love of the World: Essays on Nature Writers. Iowa City: University of Iowa Press, 1992.
MLA引文Paul, Sherman. For Love of the World: Essays on Nature Writers. University of Iowa Press, 1992.
警告：这些引文格式不一定是100％准确.