APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

Catholic Church. National Conference of Catholic Bishops. Bishops' Committee on the Liturgy en United States Catholic Conference. A Call to Prayer: The Liturgy of the Hours. Washington, DC: U.S. Catholic Conference, 1977.

MLA (8e ed.) Bronvermelding

Catholic Church. National Conference of Catholic Bishops. Bishops' Committee on the Liturgy en United States Catholic Conference. A Call to Prayer: The Liturgy of the Hours. U.S. Catholic Conference, 1977.