John XXIII, P. (1960). Christmas message 1959. National Catholic Welfare Conference.
Chicagoスタイル(17版)引用形式John XXIII, Pope. Christmas Message 1959. Washington, D.C.: National Catholic Welfare Conference, 1960.
MLA(8版)引用形式John XXIII, Pope. Christmas Message 1959. National Catholic Welfare Conference, 1960.
警告: この引用は必ずしも正確ではありません.