APA (7. basım) Alıntı

Ekman, P., & Friesen, W. V. (1978). Facial action coding system. Investigator's guide: Paul Ekman ; Wallace V. Friesen. Consulting Psychologists Pr..

Chicago Style (17. basım) Atıf

Ekman, Paul, ve Wallace V. Friesen. Facial Action Coding System. Investigator's Guide: Paul Ekman ; Wallace V. Friesen. Palo Alto, Calif.: Consulting Psychologists Pr., 1978.

MLA (8th ed.) Atıf

Ekman, Paul, ve Wallace V. Friesen. Facial Action Coding System. Investigator's Guide: Paul Ekman ; Wallace V. Friesen. Consulting Psychologists Pr., 1978.