John XXIII, P. (1959). The Holy Father speaks to teachers. National Catholic Welfare Conference.
Style de citation Chicago (17e éd.)John XXIII, Pope. The Holy Father Speaks to Teachers. Washington, D.C.: National Catholic Welfare Conference, 1959.
Style de citation MLA (8e éd.)John XXIII, Pope. The Holy Father Speaks to Teachers. National Catholic Welfare Conference, 1959.
Attention : ces citations peuvent ne pas être correctes à 100%.