Sep 16, 2016 The Instruction Musicam Sacram After Fifty Years: Rediscovering the Principles of Sacred Music By Susan Benofy
Jan 19, 2001 Pope John Paul II Address to the Professors and Students of The Pontifical Institute of Sacred Music By Pope John Paul II
Sep 3, 1958 De musica sacra et sacra liturgia – Instruction on Sacred Music and Sacred Liturgy By The Editors