Catholic Church. Pope (1978-2005 : John Paul II) & John Paul II, P. (1988). On the occasion of the Marian year: Letter, May 22, 1988. Office of Publishing and Promotion Services, United States Catholic Conference.
Chicago Style (17th ed.) CitationCatholic Church. Pope (1978-2005 : John Paul II) and Pope John Paul II. On the Occasion of the Marian Year: Letter, May 22, 1988. Washington, D.C.: Office of Publishing and Promotion Services, United States Catholic Conference, 1988.
MLA (8th ed.) CitationCatholic Church. Pope (1978-2005 : John Paul II) and Pope John Paul II. On the Occasion of the Marian Year: Letter, May 22, 1988. Office of Publishing and Promotion Services, United States Catholic Conference, 1988.
Warning: These citations may not always be 100% accurate.