Coelho, P., & Costa, M. J. (2007). The witch of Portobello. HarperCollins.
芝加哥风格引文Coelho, Paulo, 与 Margaret Jull Costa. The Witch of Portobello. London: HarperCollins, 2007.
MLA引文Coelho, Paulo, 与 Margaret Jull Costa. The Witch of Portobello. HarperCollins, 2007.
警告：这些引文格式不一定是100％准确.