Author: Thomas Aquinas
- Summa Theologica, part 1 by Thomas Aquinas
- Summa Theologica, part 2, section 1 by Thomas Aquinas
- Summa Theologica, part 2, section 2 by Thomas Aquinas
- Summa Theologica, part 3 by Thomas Aquinas
- Summa Theologica, part 3: supplement and appendices by Thomas Aquinas
