Irwin, W. (2013). Superman and Philosophy: What Would the Man of Steel Do. John Wiley & Sons, Incorporated.
Chicago-Zitierstil (17. Ausg.)Irwin, William. Superman and Philosophy: What Would the Man of Steel Do. Somerset: John Wiley & Sons, Incorporated, 2013.
MLA-Zitierstil (9. Ausg.)Irwin, William. Superman and Philosophy: What Would the Man of Steel Do. John Wiley & Sons, Incorporated, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.