Cita APA (7a ed.)

Ward, J., & Falkenstern, L. (2009). The busy tree. Marshall Cavendish Children.

Cita Chicago Style (17a ed.)

Ward, Jennifer, y Lisa Falkenstern. The Busy Tree. New York: Marshall Cavendish Children, 2009.

Cita MLA (8a ed.)

Ward, Jennifer, y Lisa Falkenstern. The Busy Tree. Marshall Cavendish Children, 2009.

Precaución: Estas citas no son 100% exactas.