Italia Pontificia, Sive, Repertorium Privilegiorum Et Litterarum a Romanis Pontificibus Ante Annum MCLXXXXVIII Italiae Ecclesiis Monasteriis Civitatibus Singulisque Personis Concessorum: Latium

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.

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.

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

The Summa Theologica of St. Thomas Aquinas; Volume 1

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

The Letter, "humanum Genus", Of The Pope, Leo Xiii, Against Free-masonry And The Spirit Of The Age, April 20, 1884: Original Latin And English Translation

The Great Encyclical Letters of Pope Leo XIII

The "Summa Theologica" of St. Thomas Aquinas: 17