Cita APA (7a ed.)

Emmett, J., & Bernatene, P. (2011). The princess and the pig. Walker.

Cita Chicago Style (17a ed.)

Emmett, Jonathan, y Poly Bernatene. The Princess and the Pig. New York: Walker, 2011.

Cita MLA (8a ed.)

Emmett, Jonathan, y Poly Bernatene. The Princess and the Pig. Walker, 2011.