Title: The Commentary on the Constitution and on the Instruction on the sacred liturgy
Subjects: Constitutio de sacra liturgia (Vatican Council), Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano). Constitutio de sacra liturgia, Catholic Church, Catholic Church. Congregatio Sacrorum Rituum, Vatican Council (2nd : 1962-1965). Constitutio de sacra liturgia