Encyclicals of Pius XI Vol.3 Atheistic Communism - Divini Redemptoris 1937|Germany & the Church - Mit Brennender Sorge 1937|Propagation of the faith - Rerum Ecclesiae 1926|Christian Education of Youth - Divini illius Magistri 1929|The Catholic priesthood - Ad Catholici Sacerdotii 193 - Pius XI (London Catholic Truth Society, various dates .)