APA
John Paul II, . (1989). Apostlic Letter of his Holiness Pope John Paul II on the occasion of the Fiftieth Anniversary of the Outbreak of the Second World war. Vatican: Libreria Editrice Vaticana.
Chicago
John Paul II, . 1989. Apostlic Letter of his Holiness Pope John Paul II on the occasion of the Fiftieth Anniversary of the Outbreak of the Second World war. Vatican: Libreria Editrice Vaticana.
Harvard
John Paul II, . (1989). Apostlic Letter of his Holiness Pope John Paul II on the occasion of the Fiftieth Anniversary of the Outbreak of the Second World war. Vatican: Libreria Editrice Vaticana.
MLA
John Paul II, . Apostlic Letter of his Holiness Pope John Paul II on the occasion of the Fiftieth Anniversary of the Outbreak of the Second World war. Vatican: Libreria Editrice Vaticana. 1989.
