Cita APA (7th ed.)
Augustine, S., & Parsons, W. (1981). Letters (3rd print.). Catholic University of America Press.
Cita Chicago (17th ed.)
Augustine, Saint, i Wilfrid Parsons. Letters. 3rd print. Washington, D.C.: Catholic University of America Press, 1981.
Cita MLA (9th ed.)
Augustine, Saint, i Wilfrid Parsons. Letters. 3rd print. Catholic University of America Press, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.