St. Augustine of Hippo: The City of God
On Grace and Free Will
On the Trinity
City of God
The Complete Works of Saint Augustine: The Confessions, On Grace and Free Will, The City of God, On Christian Doctrine, Expositions on the Book Of Psalms, ... (50 Books With Active Table of Contents)
The Confessions (I/1) 1st Edition (The Works of Saint Augustine: A Translation for the 21st Century)
Summa Theologica (Complete & Unabridged)
The Nicomachean Ethics
The City of God
Against Heresies