APA

(1988). On the 25th Anniversary of the Constitution on the Sacred Liturgy: Apostolic Letter of the Supreme Pontiff John Paul II on the 25th Anniversary of the Promulgation of the Concilliar Constitution Sacrosanctum Concilium on the Sacred Liturgy. Washington D.C: United States Catholic Conference.

Chicago

1988. On the 25th Anniversary of the Constitution on the Sacred Liturgy: Apostolic Letter of the Supreme Pontiff John Paul II on the 25th Anniversary of the Promulgation of the Concilliar Constitution Sacrosanctum Concilium on the Sacred Liturgy. Washington D.C: United States Catholic Conference.

Harvard

(1988). On the 25th Anniversary of the Constitution on the Sacred Liturgy: Apostolic Letter of the Supreme Pontiff John Paul II on the 25th Anniversary of the Promulgation of the Concilliar Constitution Sacrosanctum Concilium on the Sacred Liturgy. Washington D.C: United States Catholic Conference.

MLA

On the 25th Anniversary of the Constitution on the Sacred Liturgy: Apostolic Letter of the Supreme Pontiff John Paul II on the 25th Anniversary of the Promulgation of the Concilliar Constitution Sacrosanctum Concilium on the Sacred Liturgy. Washington D.C: United States Catholic Conference. 1988.