APA (7th ed.) Citation

Darwin, C., & Erkamn, P. (1998). The expression of the emotions in man and animals (3rd edition.). Oxford Univerity Press.

Chicago Style (17th ed.) Citation

Darwin, Charles, and Paul Erkamn. The Expression of the Emotions in Man and Animals. 3rd edition. Oxford: Oxford Univerity Press, 1998.

MLA (8th ed.) Citation

Darwin, Charles, and Paul Erkamn. The Expression of the Emotions in Man and Animals. 3rd edition. Oxford Univerity Press, 1998.