Cita APA (7th ed.)

Augustine, S., & Parsons, W. (2008). Letters. Catholic University of America Press.

Cita Chicago (17th ed.)

Augustine, Saint, i Wilfrid Parsons. Letters. Washington, D.C.: Catholic University of America Press, 2008.

Cita MLA (9th ed.)

Augustine, Saint, i Wilfrid Parsons. Letters. Catholic University of America Press, 2008.