John XXIII, P. (1963). Apostolic constitution convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference.
Lua i Stíl Chicago (17ú heag.)John XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. Washington: National Catholic Welfare Conference, 1963.
Lua MLA (8ú heag.)John XXIII, Pope. Apostolic Constitution Convoking the Second Vatican Ecumenical Council. National Catholic Welfare Conference, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.