Cita APA (7a ed.)

Tomás de Aquino, S., Regan, R. J., & Davies, B. (2003). On evil. Oxford University Press.

Cita Chicago Style (17a ed.)

Tomás de Aquino, Santo, Richard J. Regan, y Brian Davies. On Evil. Oxford ; New York: Oxford University Press, 2003.

Cita MLA (9a ed.)

Tomás de Aquino, Santo, et al. On Evil. Oxford University Press, 2003.