APA aipamena

Ekman, P., Ellsworth, P., & Friesen, W. V. (1972). Emotion in the human face: Guide-lines for research and an integration of findings. Pergamon Press.

Chicago Style aipamena

Ekman, Paul, Phoebe Ellsworth, and Wallace V. Friesen. Emotion in the Human Face: Guide-lines for Research and an Integration of Findings. New York: Pergamon Press, 1972.

MLA aipamena

Ekman, Paul, et al. Emotion in the Human Face: Guide-lines for Research and an Integration of Findings. Pergamon Press, 1972.