Faith and reason : encyclical letter Fides et ratio of the Supreme Pontiff John Paul II to the bishops of the Catholic Church on the relationship between faith and reason.

Apostolic letter Salvifici doloris of the Supreme Pontiff John Paul II to the bishops, to the priests, to the religious families and to the faithful of the Catholic Church on the Christian meaning of human suffering.

Dogmatic canons and decrees ; authorized translations of the dogmatic decrees of the Council of Trent, the Decree on the Immaculate Conception, the Syllabus of Pope Pius IX, and the decrees of the Vatican Council.

Les Registres de Nicolas III (1277-1280) - Primary Source Edition

Motu-Proprio Della Santita Di Nostro Signore Papa Pio VII in Data de'25. Novembre 1818, Su La Sanita Marittima de'Porti, E LIDI Dello Stato Pontificio

On the Sect of the Freemasons: Encyclical Letter of Our Holy Father (1884)