Cita APA (7a ed.)

Visser, S., & Williams, T. (2009). Anselm. Oxford University Press.

Cita Chicago Style (17a ed.)

Visser, Sandra, y Thomas Williams. Anselm. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (8a ed.)

Visser, Sandra, y Thomas Williams. Anselm. Oxford University Press, 2009.