APA (7th ed.) Citation

Ekman, P. (1982). Emotion in the human face (2nd ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Ekman, Paul. Emotion in the Human Face. 2nd ed. Cambridge: Cambridge University Press, 1982.

MLA (9th ed.) Citation

Ekman, Paul. Emotion in the Human Face. 2nd ed. Cambridge University Press, 1982.

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