Paul VI, P. (1965). On collegiality: Letter to all bishops, December 18, 1964. National Catholic Welfare Conference.
Chicago-referens (17:e uppl.)Paul VI, Pope. On Collegiality: Letter to All Bishops, December 18, 1964. Washington: National Catholic Welfare Conference, 1965.
MLA-referens (8:e uppl.)Paul VI, Pope. On Collegiality: Letter to All Bishops, December 18, 1964. National Catholic Welfare Conference, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.