Cita APA (7th ed.)
Agustín, S., & Barrow, R. Introduction to St. Augustine: The City of God. Faber and Faber.
Cita Chicago (17th ed.)
Agustín, Santo, i R.H Barrow. Introduction to St. Augustine: The City of God. Londres, Inglaterra: Faber and Faber.
Cita MLA (9th ed.)
Agustín, Santo, i R.H Barrow. Introduction to St. Augustine: The City of God. Faber and Faber.
Atenció: Aquestes cites poden no estar 100% correctes.