APA
Ekman P., Friesen W. V., . (2003). Unmasking the face. Cambridge, Massachusetts: Malor Books.
Chicago
Ekman Paul, Friesen Wallace V, . 2003. Unmasking the face. Cambridge, Massachusetts: Malor Books.
Harvard
Ekman P., Friesen W. V., . (2003). Unmasking the face. Cambridge, Massachusetts: Malor Books.
MLA
Ekman Paul, Friesen Wallace V, . Unmasking the face. Cambridge, Massachusetts: Malor Books. 2003.