Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.