Cita APA (7a ed.)

York, M. J., & Ferraro Close, L. (2013). The three little pigs. Child's World.

Cita Chicago Style (17a ed.)

York, M. J., y Laura Ferraro Close. The Three Little Pigs. Mankato, MN: Child's World, 2013.

Cita MLA (8a ed.)

York, M. J., y Laura Ferraro Close. The Three Little Pigs. Child's World, 2013.