Citazione Stile APA (7a Edizione)

Gaarder, J., & translated by Paulette Moller. (2004). Sophie's world: Novel about the history of philosophy. Farrar.

Citazione stile Chigago Style (17a edizione)

Gaarder, Jostein, e translated by Paulette Moller. Sophie's World: Novel About the History of Philosophy. New York: Farrar, 2004.

Citatione MLA (9a ed.)

Gaarder, Jostein, e translated by Paulette Moller. Sophie's World: Novel About the History of Philosophy. Farrar, 2004.