The Popes and the liturgy : texts in English of Motu Proprio, Pius X, 22 November 1903 and the Apostolic constitution, Divini Cultus, Pius XI, 20 December 1928.
Catholic Church.Pope (1903-1914 : Pius X).Motu proprio.
Catholic Church.Pope (1922-1939 : Pius XI).Divini cultus.
Society of St. Gregory.
[Beaconsfield] : Society of St. Gregory,
[1945]
Title from cover.
Reprinted from: Catholic Church music.
Encyclicals, Papal.
Church music