APA (7. basım) Alıntı

John Paul II, P. (2013). Letter of Pope John Paul II to the elderly (1999). Boletin Eclesiastico de Filipinas.

Chicago Style (17. basım) Atıf

John Paul II, Pope. "Letter of Pope John Paul II to the Elderly (1999)." Boletin Eclesiastico De Filipinas 2013.

MLA (9th ed.) Atıf

John Paul II, Pope. "Letter of Pope John Paul II to the Elderly (1999)." Boletin Eclesiastico De Filipinas, 2013.