APA (7e ed.) Bronvermelding

Gaarder, J., & Moller, P. (1996). Sophie's world: A novel about the history of philosophy. Phoenix.

Chicago (17e ed.) Bronvermelding

Gaarder, Jostein, en Paulette Moller. Sophie's World: A Novel About the History of Philosophy. London: Phoenix, 1996.

MLA (9e ed.) Bronvermelding

Gaarder, Jostein, en Paulette Moller. Sophie's World: A Novel About the History of Philosophy. Phoenix, 1996.