Ekman, P. (2006). Darwin and facial expression: A century of research in review / ed. by Paul Ekman (Malor paperback ed.). Malor Books.
Chicago-referens (17:e uppl.)Ekman, Paul. Darwin and Facial Expression: A Century of Research in Review / Ed. by Paul Ekman. Malor paperback ed. Cambridge, MA [u.a.]: Malor Books, 2006.
MLA-referens (8:e uppl.)Ekman, Paul. Darwin and Facial Expression: A Century of Research in Review / Ed. by Paul Ekman. Malor paperback ed. Malor Books, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.