APA (7th ed.) Citation

John Paul II, P. (1983). Portugal-- message of Fatima. St. Paul Editions.

Chicago Style (17th ed.) Citation

John Paul II, Pope. Portugal-- Message of Fatima. Boston, MA: St. Paul Editions, 1983.

MLA (8th ed.) Citation

John Paul II, Pope. Portugal-- Message of Fatima. St. Paul Editions, 1983.

Warning: These citations may not always be 100% accurate.