Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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