John XXIII, P. (1960). Christmas message 1959. National Catholic Welfare Conference.
Lua i Stíl Chicago (17ú heag.)John XXIII, Pope. Christmas Message 1959. Washington, D.C.: National Catholic Welfare Conference, 1960.
Lua MLA (8ú heag.)John XXIII, Pope. Christmas Message 1959. National Catholic Welfare Conference, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.