APA (7e ed.) Bronvermelding

John XXIII, P. (1963). Apostolic constitution convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference.

Chicago (17e ed.) Bronvermelding

John XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. Washington: National Catholic Welfare Conference, 1963.

MLA (8e ed.) Bronvermelding

John XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference, 1963.

Let op: Deze citaties zijn niet altijd 100% accuraat.