Cita APA

John XXIII, P. (1962). 1961 Christmas message. National Catholic Welfare Conference.

Citación estilo Chicago

John XXIII, Pope. 1961 Christmas Message. Washington, D.C.: National Catholic Welfare Conference, 1962.

Cita MLA

John XXIII, Pope. 1961 Christmas Message. National Catholic Welfare Conference, 1962.

Warning: These citations may not always be 100% accurate.