APA Style
Neuschwander, C., Geehan, W. (1999).
Sir Cumference and the dragon of pi : a math adventure .
Watertown, USA:
Charlesbridge.
MLA Style
Neuschwander, Cindy., Geehan, Wayne.
"Sir Cumference and the dragon of pi : a math adventure".
Watertown, USA:
Charlesbridge,
1999.
Text.