Catholic Church. National Conference of Catholic Bishops. Bishops' Committee on the Liturgy & United States Catholic Conference. (1977). A call to prayer: The Liturgy of the hours. U.S. Catholic Conference.
Citação norma ChicagoCatholic Church. National Conference of Catholic Bishops. Bishops' Committee on the Liturgy and United States Catholic Conference. A Call to Prayer: The Liturgy of the Hours. Washington, DC: U.S. Catholic Conference, 1977.
Citação norma MLACatholic Church. National Conference of Catholic Bishops. Bishops' Committee on the Liturgy and United States Catholic Conference. A Call to Prayer: The Liturgy of the Hours. U.S. Catholic Conference, 1977.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.