APA (7th ed.) Citation

Aquinas, T., Regan, R., & Davies, B. (2003). On Evil.

Chicago Style (17th ed.) Citation

Aquinas, Thomas, Richard Regan, and Brian Davies. On Evil. 2003.

MLA (9th ed.) Citation

Aquinas, Thomas, et al. On Evil. 2003.

Warning: These citations may not always be 100% accurate.