Cita APA (7a ed.)

John XXIII, P. (1959). The Holy Father speaks to teachers. National Catholic Welfare Conference.

Cita Chicago Style (17a ed.)

John XXIII, Pope. The Holy Father Speaks to Teachers. Washington, D.C.: National Catholic Welfare Conference, 1959.

Cita MLA (8a ed.)

John XXIII, Pope. The Holy Father Speaks to Teachers. National Catholic Welfare Conference, 1959.