The Encyclicals of Pius XI L'action catholique - Quae Nobis 1928|Le mariage chrétien - Casti connubii 1930|Sacerdoce catholique - Catholici Sacerdotii 1935|sur le saint rosaire - Ingravescentibus malis 1937|sur le communisme - Divini Redemptoris 1937 - Pius XI (London Catholic Truth Society, various dates .)