Gaarder, J., & Moller, P. (1996). Sophie's world: A novel about the history of philosophy. Phoenix.
芝加哥风格引文Gaarder, Jostein, 与 Paulette Moller. Sophie's World: A Novel About the History of Philosophy. London: Phoenix, 1996.
MLA引文Gaarder, Jostein, 与 Paulette Moller. Sophie's World: A Novel About the History of Philosophy. Phoenix, 1996.
警告：这些引文格式不一定是100％准确.