Cita APA

Gaarder, J. 1. (1996). Sophie's world: A novel about the History of Philosophy. London: Phoenix.

Citación estilo Chicago

Gaarder, Jostein 1952-. Sophie's World: A Novel About the History of Philosophy. London: Phoenix, 1996.

Cita MLA

Gaarder, Jostein 1952-. Sophie's World: A Novel About the History of Philosophy. London: Phoenix, 1996.