Cita APA (7a ed.)

John XXIII, P. (1963). A prodigy of celestial grace: Address of His Holiness Pope John XXIII, March 17, 1963. National Catholic Welfare Conference.

Cita Chicago Style (17a ed.)

John XXIII, Pope. A Prodigy of Celestial Grace: Address of His Holiness Pope John XXIII, March 17, 1963. Washington, D.C.: National Catholic Welfare Conference, 1963.

Cita MLA (8a ed.)

John XXIII, Pope. A Prodigy of Celestial Grace: Address of His Holiness Pope John XXIII, March 17, 1963. National Catholic Welfare Conference, 1963.