Aquinas, T., & Hutchins, R. M. The summa theologica.
Cita Chicago (17th ed.)Aquinas, Thomas, i Robert Maynard Hutchins. The Summa Theologica.
Cita MLA (8th ed.)Aquinas, Thomas, i Robert Maynard Hutchins. The Summa Theologica.
Atenció: Aquestes cites poden no estar 100% correctes.