Griffiths, P. E. (1997). What emotions really are: The problem of psychological categories. University of Chicago Press.
Citazione stile Chigago Style (17a edizione)Griffiths, Paul E. What Emotions Really Are: The Problem of Psychological Categories. Chicago, Ill.: University of Chicago Press, 1997.
Citatione MLA (9a ed.)Griffiths, Paul E. What Emotions Really Are: The Problem of Psychological Categories. University of Chicago Press, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.