APA (7th ed.) Citation

Darwin, C. (1873). The expression of the emotions in man and animals. J. Murray.

Chicago Style (17th ed.) Citation

Darwin, Charles. The Expression of the Emotions in Man and Animals. London: J. Murray, 1873.

MLA (8th ed.) Citation

Darwin, Charles. The Expression of the Emotions in Man and Animals. J. Murray, 1873.