APA-referens (7:e uppl.)

Gaarder, J. (1996). Sophie's world: A novel about the history of philosophy / Jostein Gaarder ; translated by Paulette Møller (37. ed.). Phoenix.

Chicago-referens (17:e uppl.)

Gaarder, Jostein. Sophie's World: A Novel About the History of Philosophy / Jostein Gaarder ; Translated by Paulette Møller. 37. ed. London: Phoenix, 1996.

MLA-referens (8:e uppl.)

Gaarder, Jostein. Sophie's World: A Novel About the History of Philosophy / Jostein Gaarder ; Translated by Paulette Møller. 37. ed. Phoenix, 1996.