APA Style

Neuschwander, C., Geehan, W. (2001). Sir Cumference and the Great Knight of Angleland : a math adventure . Watertown, USA: Charlesbridge.

MLA Style

Neuschwander, Cindy., Geehan, Wayne. "Sir Cumference and the Great Knight of Angleland : a math adventure". Watertown, USA: Charlesbridge, 2001. Text.