Cita APA (7a ed.)

Neuschwander, C., & Geehan, W. (2009). Sir Cumference and all the king's tens: A math adventure. Charlesbridge.

Cita Chicago Style (17a ed.)

Neuschwander, Cindy, y Wayne Geehan. Sir Cumference and All the King's Tens: A Math Adventure. Watertown, Mass.: Charlesbridge, 2009.

Cita MLA (8a ed.)

Neuschwander, Cindy, y Wayne Geehan. Sir Cumference and All the King's Tens: A Math Adventure. Charlesbridge, 2009.

Precaución: Estas citas no son 100% exactas.