Gaarder, J., & translated by Paulette Moller. (2004). Sophie's world: Novel about the history of philosophy. Farrar.
Chicago-čujuhus (17. p.)Gaarder, Jostein, juo translated by Paulette Moller. Sophie's World: Novel About the History of Philosophy. New York: Farrar, 2004.
MLA-čujuhus (9. p.)Gaarder, Jostein, juo translated by Paulette Moller. Sophie's World: Novel About the History of Philosophy. Farrar, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.