Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.