Cita APA (7a ed.)

Roberts, B., & Cauley, L. B. (2008). Double trouble Groundhog Day. Henry Holt and Co..

Cita Chicago Style (17a ed.)

Roberts, Bethany, y Lorinda Bryan Cauley. Double Trouble Groundhog Day. New York: Henry Holt and Co., 2008.

Cita MLA (8a ed.)

Roberts, Bethany, y Lorinda Bryan Cauley. Double Trouble Groundhog Day. Henry Holt and Co., 2008.

Precaución: Estas citas no son 100% exactas.