John Paul II, P. (1987). On the twelfth centenary of the second council of Nicaea: Duodecimum saeculum : apostolic letter, December 4, 1987. Washington, D.C..
Style de citation Chicago (17e éd.)John Paul II, Pope. On the Twelfth Centenary of the Second Council of Nicaea: Duodecimum Saeculum : Apostolic Letter, December 4, 1987. Washington, D.C., 1987.
Style de citation MLA (8e éd.)John Paul II, Pope. On the Twelfth Centenary of the Second Council of Nicaea: Duodecimum Saeculum : Apostolic Letter, December 4, 1987. Washington, D.C., 1987.
Attention : ces citations peuvent ne pas être correctes à 100%.