Darwin, C. (2013). The expression of the emotions in man and animals. Cambridge University.
芝加哥风格引文Darwin, Charles. The Expression of the Emotions in Man and Animals. London: Cambridge University, 2013.
MLA引文Darwin, Charles. The Expression of the Emotions in Man and Animals. Cambridge University, 2013.
警告：这些引文格式不一定是100％准确.