Citazione Stile APA (7a Edizione)

Proclus ca. 410-485, Opsomer, J., & Steel, C. G. (2003). On the existence of evils. Cornell University Press.

Citazione stile Chigago Style (17a edizione)

Proclus ca. 410-485, Jan Opsomer, e Carlos G. Steel. On the Existence of Evils. Ithaca, N.Y: Cornell University Press, 2003.

Citatione MLA (9a ed.)

Proclus ca. 410-485, et al. On the Existence of Evils. Cornell University Press, 2003.