Craggs, M., & Aggs, P. (2004). Rhyming riddles (Cambridge Storybooks ed.). Cambridge University Press.
芝加哥风格引文Craggs, Marjorie, 与 Patrice Aggs. Rhyming Riddles. Cambridge Storybooks ed. Cambridge, UK ; New York: Cambridge University Press, 2004.
MLA引文Craggs, Marjorie, 与 Patrice Aggs. Rhyming Riddles. Cambridge Storybooks ed. Cambridge University Press, 2004.
警告：这些引文格式不一定是100％准确.