Cita APA (7a ed.)

Griffiths, P. E. (1997). What emotions really are: The problem of psychological categories. University of Chicago Press.

Cita Chicago Style (17a ed.)

Griffiths, Paul E. What Emotions Really Are: The Problem of Psychological Categories. Chicago [etc.]: University of Chicago Press, 1997.

Cita MLA (9a ed.)

Griffiths, Paul E. What Emotions Really Are: The Problem of Psychological Categories. University of Chicago Press, 1997.