APA (7th ed.) Citation

Davidson, R. J., & Ekman, P. (1994). The Nature of emotion: Fundamental questions. Oxford University Press.

Chicago Style (17th ed.) Citation

Davidson, Richard J., and Paul Ekman. The Nature of Emotion: Fundamental Questions. New York: Oxford University Press, 1994.

MLA (9th ed.) Citation

Davidson, Richard J., and Paul Ekman. The Nature of Emotion: Fundamental Questions. Oxford University Press, 1994.