Friedrich, P. (2008). The Gita within Walden. State University of New York Press.
芝加哥风格引文Friedrich, Paul. The Gita Within Walden. Albany: State University of New York Press, 2008.
MLA引文Friedrich, Paul. The Gita Within Walden. State University of New York Press, 2008.
警告：这些引文格式不一定是100％准确.