Cita APA (7a ed.)

Ahern, D. R. (2012). The smile of tragedy: Nietzsche and the art of virtue. Pennsylvania State University Press.

Cita Chicago Style (17a ed.)

Ahern, Daniel R. The Smile of Tragedy: Nietzsche and the Art of Virtue. University Park, Pa.: Pennsylvania State University Press, 2012.

Cita MLA (8a ed.)

Ahern, Daniel R. The Smile of Tragedy: Nietzsche and the Art of Virtue. Pennsylvania State University Press, 2012.