Cita APA (7a ed.)

O'Connell, J., & Morris, J. E. (2012). It's Halloween night! Cartwheel Books.

Cita Chicago Style (17a ed.)

O'Connell, Jennifer, y J. E. Morris. It's Halloween Night! New York: Cartwheel Books, 2012.

Cita MLA (8a ed.)

O'Connell, Jennifer, y J. E. Morris. It's Halloween Night! Cartwheel Books, 2012.