Gaya APA

II, J, P. (1985). To the youth of the world. Apostolic letter of Pope John Paul II on the occasion of international youth year. . Vatican City: Vatican City Libreria Editrice Vaticana.

Gaya MLA

II, Joannes, Paulus. "To the youth of the world. Apostolic letter of Pope John Paul II on the occasion of international youth year. ". Vatican City: Vatican City Libreria Editrice Vaticana, 1985. Buku.