APA (7th ed.) Citation

Darwin, C. (1965). The expression of the emotions in man and animals / by C. Darwin. Chicago U.P..

Chicago Style (17th ed.) Citation

Darwin, Charles. The Expression of the Emotions in Man and Animals / by C. Darwin. Chicago U.P., 1965.

MLA (9th ed.) Citation

Darwin, Charles. The Expression of the Emotions in Man and Animals / by C. Darwin. Chicago U.P., 1965.

Warning: These citations may not always be 100% accurate.