Cita APA (7a ed.)

Gregory, C., Gregory, D. C. T., & Parrott, D. (2013). The end of Richelieu.

Cita Chicago Style (17a ed.)

Gregory, C., Dr Charles T. Gregory, y D. Parrott. The End of Richelieu. 2013.

Cita MLA (9a ed.)

Gregory, C., et al. The End of Richelieu. 2013.