Minarik, E. H., & Doubleday, D. (2010). Little Bear and the Marco Polo. HarperCollins.
芝加哥风格引文Minarik, Else Holmelund, 与 Dorothy Doubleday. Little Bear and the Marco Polo. New York: HarperCollins, 2010.
MLA引文Minarik, Else Holmelund, 与 Dorothy Doubleday. Little Bear and the Marco Polo. HarperCollins, 2010.
警告：这些引文格式不一定是100％准确.