John XXIII, P. (1963). Apostolic constitution convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference.
Chicago (17e ed.) BronvermeldingJohn XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. Washington: National Catholic Welfare Conference, 1963.
MLA (8e ed.) BronvermeldingJohn XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference, 1963.
Let op: Deze citaties zijn niet altijd 100% accuraat.