PDF • “The Book of Ceremonies” (629 pages)
By Rev. Laurence J. O’Connell, and *published in English* in 1943.
Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”