“CHARLES H. O’BRIEN, Ideas of Religious Toleration at the Time of Joseph II. A Study of the Enlightment Among Catholics in Austria, En «Transactions of the American Philosophical Society», 1 Vol. De 84 págs., De 24 X 30 cms., Ed. The American Philosophical Society, Filadelfia, 1969”. Ius Canonicum, vol. 11, no. 22, Apr. 2018, pp. 504-5, https://doi.org/10.15581/016.11.21451.