Cita APA (7a ed.)

Partridge, J., & Voce, S. (2001). Four scary monsters. Cambridge university.

Cita Chicago Style (17a ed.)

Partridge, Juliet, y Stella Voce. Four Scary Monsters. Cambridge: Cambridge university, 2001.

Cita MLA (9a ed.)

Partridge, Juliet, y Stella Voce. Four Scary Monsters. Cambridge university, 2001.